Latest exam Aptitude Question SOLUTION: Solve these proportions. (3) 9/x = 2/3 (6) 16/m=1/4 (9) y/4=5/8 (12) 2/7 = 5/y (15) 18/c = 2/7 (18) 63/144 = u/16 (21) 7/b = 4/9 (24) y/18 = 150/126