==================================
Explanation:
We are told that
3 inches = 8 feet
so we can multiply both sides by 2 to get
6 inches = 16 feet
--------------------
or you can solve the proportion below for x
3/8 = x/16
3*16 = 8*x .... cross multiply
48 = 8x
8x = 48
x = 48/8 .... divide both sides by 8
x = 6
