Question

Hi. Could I get help with the below problem. TIA

Find the value that completes each proportion.

4/5 = ?/15

Answer 1

$Proportion:\\\frac{4}{5}=\frac{x}{15}\\\\Cross\ multiplication\\\\15*4=5x\\\\ 60=5x\ \ \ |Divide\ by\ 5\\\\ x=12$

Answer 2

15 divided by 5 is 3, so you multiply 4 by 3, which is 12.

4/5 = 12/15