Given the proportion

Question

a/b =8/15, what ratio completes the equivalent proportion
a/8 =?

How do I do this?

Answer 1

a/8 = 8/15

Cross multiply and solve for a.

15a = 64

a = 64/15 = 4.26667

Answer 2

a/b =8/15
multiply both sides by b/8 and you get
a/8 = b/15

Answer 3

Thank you very much guys