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Finding the Fourth Proportional to 8,911.92, 13,367.88 and 2,338.68

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Solution

The fourth proportional to 8,911.92, 13,367.88 and 2,338.68 is: 3,508.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,911.92 : 13,367.88 = 2,338.68 : x
  2. Step 2: Convert to fraction form
    8,911.92/13,367.88 = 2,338.68/x
  3. Step 3: Cross multiply
    8,911.92x = 13,367.88 × 2,338.68
  4. Step 4: Simplify right side
    8,911.92x = 31,263,193.60
  5. Step 5: Solve for x
    x = 31,263,193.60/8,911.92
  6. Step 6: Final answer
    x = 3,508.02

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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.