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Finding the Fourth Proportional to 15,019.58, 20,726.13 and 8,304.68

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Solution

The fourth proportional to 15,019.58, 20,726.13 and 8,304.68 is: 11,459.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.58 : 20,726.13 = 8,304.68 : x
  2. Step 2: Convert to fraction form
    15,019.58/20,726.13 = 8,304.68/x
  3. Step 3: Cross multiply
    15,019.58x = 20,726.13 × 8,304.68
  4. Step 4: Simplify right side
    15,019.58x = 172,123,877.29
  5. Step 5: Solve for x
    x = 172,123,877.29/15,019.58
  6. Step 6: Final answer
    x = 11,459.97

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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.