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Finding the Fourth Proportional to 8,338.44, 12,503.05 and 3,411.54

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Solution

The fourth proportional to 8,338.44, 12,503.05 and 3,411.54 is: 5,115.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.44 : 12,503.05 = 3,411.54 : x
  2. Step 2: Convert to fraction form
    8,338.44/12,503.05 = 3,411.54/x
  3. Step 3: Cross multiply
    8,338.44x = 12,503.05 × 3,411.54
  4. Step 4: Simplify right side
    8,338.44x = 42,654,638.14
  5. Step 5: Solve for x
    x = 42,654,638.14/8,338.44
  6. Step 6: Final answer
    x = 5,115.42

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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.