Home / 15,979.24-22,057.14-9,691.48

Finding the Fourth Proportional to 15,979.24, 22,057.14 and 9,691.48

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Solution

The fourth proportional to 15,979.24, 22,057.14 and 9,691.48 is: 13,377.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,979.24 : 22,057.14 = 9,691.48 : x
  2. Step 2: Convert to fraction form
    15,979.24/22,057.14 = 9,691.48/x
  3. Step 3: Cross multiply
    15,979.24x = 22,057.14 × 9,691.48
  4. Step 4: Simplify right side
    15,979.24x = 213,766,331.17
  5. Step 5: Solve for x
    x = 213,766,331.17/15,979.24
  6. Step 6: Final answer
    x = 13,377.75

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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.