Home / 16,515.28-22,789.92-9,345.97

Finding the Fourth Proportional to 16,515.28, 22,789.92 and 9,345.97

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Solution

The fourth proportional to 16,515.28, 22,789.92 and 9,345.97 is: 12,896.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,515.28 : 22,789.92 = 9,345.97 : x
  2. Step 2: Convert to fraction form
    16,515.28/22,789.92 = 9,345.97/x
  3. Step 3: Cross multiply
    16,515.28x = 22,789.92 × 9,345.97
  4. Step 4: Simplify right side
    16,515.28x = 212,993,908.62
  5. Step 5: Solve for x
    x = 212,993,908.62/16,515.28
  6. Step 6: Final answer
    x = 12,896.78

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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.