Solving a proportion in two different methods 9/q = 15/10

The video tutorial discusses solving a proportion problem using cross multiplication and an alternative method involving the least common denominator. The instructor explains the problem setup, demonstrates the cross multiplication method, and provides an alternative approach to eliminate fractions. The tutorial emphasizes understanding the concept of cross multiplication in solving proportions.

What is the initial problem discussed by the teacher involving a proportion?

• Q/5 = 9/15

• 9/Q = 15/5

• Q/9 = 5/15

• 9/15 = Q/5

Which method is suggested by the teacher to solve the proportion 9/Q = 15/5?

• Substitution

• Trial and error

• Cross multiplication

• Graphing

What is the result of cross multiplying the equation 9/Q = 15/5?

• Q = 4

• Q = 6

• Q = 5

• Q = 3

What alternative method is discussed to solve the proportion without cross multiplication?

• Using addition

• Using substitution

• Using the least common denominator

• Using division

What is the purpose of cross multiplication according to the teacher?

• To solve a proportion

• To multiply fractions

• To divide fractions

• To add fractions