Answer :
We can set up a proportion.
4/28 = 12/x
Cross multiply. 4 * x = 4x, 28 x 12 = 336.
We know have 4x = 336, which means we divide 336 by 4, which equals 84. :)
4/28 = 12/x
Cross multiply. 4 * x = 4x, 28 x 12 = 336.
We know have 4x = 336, which means we divide 336 by 4, which equals 84. :)