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Finding the Fourth Proportional to 18,148.50, 25,049.28 and 11,080.92

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Solution

The fourth proportional to 18,148.50, 25,049.28 and 11,080.92 is: 15,294.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,148.50 : 25,049.28 = 11,080.92 : x
  2. Step 2: Convert to fraction form
    18,148.50/25,049.28 = 11,080.92/x
  3. Step 3: Cross multiply
    18,148.50x = 25,049.28 × 11,080.92
  4. Step 4: Simplify right side
    18,148.50x = 277,569,067.74
  5. Step 5: Solve for x
    x = 277,569,067.74/18,148.50
  6. Step 6: Final answer
    x = 15,294.33

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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.