Question

Q16 4:y::y:16 find value of y
Q17 if 2,12,y are in proportion,find value of y

Answer 1

$q. 16 \\ \\ \frac{4}{y} = \frac{y}{16} \\ \\ 64 = {y}^{2} \\ \\ y = \sqrt{64} \\ \\ y = 8$

Q 17 y = 18

I hope this will be help you