Home / 8,688-20,497

Finding the Third Proportional to 8,688 and 20,497

Calculator

Solution

The third proportional to 8,688 and 20,497 is: 48,357.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688 : 20,497 = 20,497 : x
  2. Step 2: Convert to fraction form
    8,688/20,497 = 20,497/x
  3. Step 3: Cross multiply
    8,688x = 20,497 × 20,497
  4. Step 4: Simplify right side
    8,688x = 420,127,009
  5. Step 5: Solve for x
    x = 420,127,009/8,688
  6. Step 6: Final answer
    x = 48,357.16

Related Problems

Find third proportional to 4,344 and 10,248.50
Half scale
Find third proportional to 17,376 and 40,994
Double scale
Find third proportional to 8,690 and 20,502
Similar ratio
Find third proportional to 13,032 and 30,745.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (2.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.