Home / 15,497.28-21,387.24-8,691.94

Finding the Fourth Proportional to 15,497.28, 21,387.24 and 8,691.94

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Solution

The fourth proportional to 15,497.28, 21,387.24 and 8,691.94 is: 11,995.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,497.28 : 21,387.24 = 8,691.94 : x
  2. Step 2: Convert to fraction form
    15,497.28/21,387.24 = 8,691.94/x
  3. Step 3: Cross multiply
    15,497.28x = 21,387.24 × 8,691.94
  4. Step 4: Simplify right side
    15,497.28x = 185,896,606.85
  5. Step 5: Solve for x
    x = 185,896,606.85/15,497.28
  6. Step 6: Final answer
    x = 11,995.43

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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.