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Finding the Fourth Proportional to 18,591.73, 27,883.50 and 5,445.13

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Solution

The fourth proportional to 18,591.73, 27,883.50 and 5,445.13 is: 8,166.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,591.73 : 27,883.50 = 5,445.13 : x
  2. Step 2: Convert to fraction form
    18,591.73/27,883.50 = 5,445.13/x
  3. Step 3: Cross multiply
    18,591.73x = 27,883.50 × 5,445.13
  4. Step 4: Simplify right side
    18,591.73x = 151,829,282.36
  5. Step 5: Solve for x
    x = 151,829,282.36/18,591.73
  6. Step 6: Final answer
    x = 8,166.50

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Why These Related Problems?

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