Home / 12,463.28-17,198.68-7,747.48

Finding the Fourth Proportional to 12,463.28, 17,198.68 and 7,747.48

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Solution

The fourth proportional to 12,463.28, 17,198.68 and 7,747.48 is: 10,691.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,463.28 : 17,198.68 = 7,747.48 : x
  2. Step 2: Convert to fraction form
    12,463.28/17,198.68 = 7,747.48/x
  3. Step 3: Cross multiply
    12,463.28x = 17,198.68 × 7,747.48
  4. Step 4: Simplify right side
    12,463.28x = 133,246,429.33
  5. Step 5: Solve for x
    x = 133,246,429.33/12,463.28
  6. Step 6: Final answer
    x = 10,691.12

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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.