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Finding the Fourth Proportional to 18,507.62, 25,540.89 and 10,124.66

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Solution

The fourth proportional to 18,507.62, 25,540.89 and 10,124.66 is: 13,972.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,507.62 : 25,540.89 = 10,124.66 : x
  2. Step 2: Convert to fraction form
    18,507.62/25,540.89 = 10,124.66/x
  3. Step 3: Cross multiply
    18,507.62x = 25,540.89 × 10,124.66
  4. Step 4: Simplify right side
    18,507.62x = 258,592,827.35
  5. Step 5: Solve for x
    x = 258,592,827.35/18,507.62
  6. Step 6: Final answer
    x = 13,972.24

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.