Home / 8,280-15,724

Finding the Third Proportional to 8,280 and 15,724

Calculator

Solution

The third proportional to 8,280 and 15,724 is: 29,860.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,280 : 15,724 = 15,724 : x
  2. Step 2: Convert to fraction form
    8,280/15,724 = 15,724/x
  3. Step 3: Cross multiply
    8,280x = 15,724 × 15,724
  4. Step 4: Simplify right side
    8,280x = 247,244,176
  5. Step 5: Solve for x
    x = 247,244,176/8,280
  6. Step 6: Final answer
    x = 29,860.41

Related Problems

Find third proportional to 4,140 and 7,862
Half scale
Find third proportional to 16,560 and 31,448
Double scale
Find third proportional to 8,282 and 15,728
Similar ratio
Find third proportional to 12,420 and 23,586
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.90) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.