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Finding the Fourth Proportional to 8,798.62, 12,142.02 and 4,819.75

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Solution

The fourth proportional to 8,798.62, 12,142.02 and 4,819.75 is: 6,651.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,798.62 : 12,142.02 = 4,819.75 : x
  2. Step 2: Convert to fraction form
    8,798.62/12,142.02 = 4,819.75/x
  3. Step 3: Cross multiply
    8,798.62x = 12,142.02 × 4,819.75
  4. Step 4: Simplify right side
    8,798.62x = 58,521,470.54
  5. Step 5: Solve for x
    x = 58,521,470.54/8,798.62
  6. Step 6: Final answer
    x = 6,651.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.