Home / 16,149.75-22,286.25-8,979.68

Finding the Fourth Proportional to 16,149.75, 22,286.25 and 8,979.68

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Solution

The fourth proportional to 16,149.75, 22,286.25 and 8,979.68 is: 12,391.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,149.75 : 22,286.25 = 8,979.68 : x
  2. Step 2: Convert to fraction form
    16,149.75/22,286.25 = 8,979.68/x
  3. Step 3: Cross multiply
    16,149.75x = 22,286.25 × 8,979.68
  4. Step 4: Simplify right side
    16,149.75x = 200,123,449.12
  5. Step 5: Solve for x
    x = 200,123,449.12/16,149.75
  6. Step 6: Final answer
    x = 12,391.74

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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.