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Finding the Fourth Proportional to 18,567.43, 27,853.07 and 5,419.71

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Solution

The fourth proportional to 18,567.43, 27,853.07 and 5,419.71 is: 8,130.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,567.43 : 27,853.07 = 5,419.71 : x
  2. Step 2: Convert to fraction form
    18,567.43/27,853.07 = 5,419.71/x
  3. Step 3: Cross multiply
    18,567.43x = 27,853.07 × 5,419.71
  4. Step 4: Simplify right side
    18,567.43x = 150,955,534.91
  5. Step 5: Solve for x
    x = 150,955,534.91/18,567.43
  6. Step 6: Final answer
    x = 8,130.13

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.