Home / 7,130-9,715

Finding the Third Proportional to 7,130 and 9,715

Calculator

Solution

The third proportional to 7,130 and 9,715 is: 13,237.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,130 : 9,715 = 9,715 : x
  2. Step 2: Convert to fraction form
    7,130/9,715 = 9,715/x
  3. Step 3: Cross multiply
    7,130x = 9,715 × 9,715
  4. Step 4: Simplify right side
    7,130x = 94,381,225
  5. Step 5: Solve for x
    x = 94,381,225/7,130
  6. Step 6: Final answer
    x = 13,237.20

Related Problems

Find third proportional to 3,565 and 4,857.50
Half scale
Find third proportional to 14,260 and 19,430
Double scale
Find third proportional to 7,132 and 9,718
Similar ratio
Find third proportional to 10,695 and 14,572.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.