Home / 16,781.14-25,161.90-6,909.28

Finding the Fourth Proportional to 16,781.14, 25,161.90 and 6,909.28

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Solution

The fourth proportional to 16,781.14, 25,161.90 and 6,909.28 is: 10,359.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,781.14 : 25,161.90 = 6,909.28 : x
  2. Step 2: Convert to fraction form
    16,781.14/25,161.90 = 6,909.28/x
  3. Step 3: Cross multiply
    16,781.14x = 25,161.90 × 6,909.28
  4. Step 4: Simplify right side
    16,781.14x = 173,850,612.43
  5. Step 5: Solve for x
    x = 173,850,612.43/16,781.14
  6. Step 6: Final answer
    x = 10,359.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.