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Finding the Fourth Proportional to 18,488.92, 27,742.38 and 8,099.32

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Solution

The fourth proportional to 18,488.92, 27,742.38 and 8,099.32 is: 12,152.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,488.92 : 27,742.38 = 8,099.32 : x
  2. Step 2: Convert to fraction form
    18,488.92/27,742.38 = 8,099.32/x
  3. Step 3: Cross multiply
    18,488.92x = 27,742.38 × 8,099.32
  4. Step 4: Simplify right side
    18,488.92x = 224,694,413.18
  5. Step 5: Solve for x
    x = 224,694,413.18/18,488.92
  6. Step 6: Final answer
    x = 12,152.92

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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.