Home / 7,137-12,528

Finding the Third Proportional to 7,137 and 12,528

Calculator

Solution

The third proportional to 7,137 and 12,528 is: 21,991.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,137 : 12,528 = 12,528 : x
  2. Step 2: Convert to fraction form
    7,137/12,528 = 12,528/x
  3. Step 3: Cross multiply
    7,137x = 12,528 × 12,528
  4. Step 4: Simplify right side
    7,137x = 156,950,784
  5. Step 5: Solve for x
    x = 156,950,784/7,137
  6. Step 6: Final answer
    x = 21,991.14

Related Problems

Find third proportional to 3,568.50 and 6,264
Half scale
Find third proportional to 14,274 and 25,056
Double scale
Find third proportional to 7,139 and 12,532
Similar ratio
Find third proportional to 10,705.50 and 18,792
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.76) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.