Home / 14,920.97-20,585.89-8,459.92

Finding the Fourth Proportional to 14,920.97, 20,585.89 and 8,459.92

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Solution

The fourth proportional to 14,920.97, 20,585.89 and 8,459.92 is: 11,671.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,920.97 : 20,585.89 = 8,459.92 : x
  2. Step 2: Convert to fraction form
    14,920.97/20,585.89 = 8,459.92/x
  3. Step 3: Cross multiply
    14,920.97x = 20,585.89 × 8,459.92
  4. Step 4: Simplify right side
    14,920.97x = 174,154,909.91
  5. Step 5: Solve for x
    x = 174,154,909.91/14,920.97
  6. Step 6: Final answer
    x = 11,671.83

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.