C-11-Q021mediumsingle_mcqThe fourth proportional of 3,4,93, 4, 93,4,9 is—a101010b111111c121212d131313ব্যাখ্যাThe fourth proportional xxx satisfies 3:4=9:x3:4 = 9:x3:4=9:x, so 3x=363x = 363x=36 and x=12x = 12x=12.