Question

x:3::12::8 find the value of x in the preposition

Answer 1

since the given numbers are in propertion then

product of extremes terms = product of means terms,

x × 8 = 3×12,

then
x × 8 =36,


x=36/8,

x=9/2

Answer 2

x:3::12:8
=>x/3=12/8
=>x=(12*3)/8
=>x=9/2=4.5