Home / 15,432-16,872

Finding the Third Proportional to 15,432 and 16,872

Calculator

Solution

The third proportional to 15,432 and 16,872 is: 18,446.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,432 : 16,872 = 16,872 : x
  2. Step 2: Convert to fraction form
    15,432/16,872 = 16,872/x
  3. Step 3: Cross multiply
    15,432x = 16,872 × 16,872
  4. Step 4: Simplify right side
    15,432x = 284,664,384
  5. Step 5: Solve for x
    x = 284,664,384/15,432
  6. Step 6: Final answer
    x = 18,446.37

Related Problems

Find third proportional to 7,716 and 8,436
Half scale
Find third proportional to 30,864 and 33,744
Double scale
Find third proportional to 15,434 and 16,874
Similar ratio
Find third proportional to 23,148 and 25,308
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.