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Finding the Fourth Proportional to 18,207.27, 25,128.43 and 10,251.05

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Solution

The fourth proportional to 18,207.27, 25,128.43 and 10,251.05 is: 14,147.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,207.27 : 25,128.43 = 10,251.05 : x
  2. Step 2: Convert to fraction form
    18,207.27/25,128.43 = 10,251.05/x
  3. Step 3: Cross multiply
    18,207.27x = 25,128.43 × 10,251.05
  4. Step 4: Simplify right side
    18,207.27x = 257,592,641.08
  5. Step 5: Solve for x
    x = 257,592,641.08/18,207.27
  6. Step 6: Final answer
    x = 14,147.79

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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.