1) Commensurate 2) Proportionate 3) Suitable in measure 1) Commensurate 
• (a.) Having a common measure; capable of being exactly measured by the same number, quantity, or measure.
(from the article `celestial mechanics`) ...configurations occur when the mean motions of Jupiter and the small particle—here an asteroid—are near a ratio of small integers. The orbital mean ... ...the volumes of prisms and cylinders, respectively, with the same bases and heights. Various traces suggest that Eudoxus`s proof of...
Two lines or distances are commensurable if the ratio of their lengths is a rational number. If the ratio is an irrational number, they are called incommensurable.
Com·men'su·ra·ble adjective [ Latin commensurabilis ; prefix com- + mensurable . See Commensurate , and confer Commeasurable .] Having a common measure; capable of being exactly measured by the same number, quantity, or measure. -- 
Commensurable is an appellation given to such quantities or magnitudes as can be measured by one and the same common measure. Commensurable numbers are such as can be measured or divided by some other number without any remainder; such are 12 and 18, as being measured by 6 or 3.
[adj] - able to be measured by a common standard
adjective able to be measured by a common standard; `hours and minutes are commensurable`
having the same measure or divisor: The numbers 6 and 9 are commensurable since they are divisible by 3. · suitable in measure; proportionate.