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Finding the Fourth Proportional to 18,632.28, 25,712.02 and 10,248.78

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Solution

The fourth proportional to 18,632.28, 25,712.02 and 10,248.78 is: 14,143.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,632.28 : 25,712.02 = 10,248.78 : x
  2. Step 2: Convert to fraction form
    18,632.28/25,712.02 = 10,248.78/x
  3. Step 3: Cross multiply
    18,632.28x = 25,712.02 × 10,248.78
  4. Step 4: Simplify right side
    18,632.28x = 263,516,836.34
  5. Step 5: Solve for x
    x = 263,516,836.34/18,632.28
  6. Step 6: Final answer
    x = 14,143.03

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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.