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Finding the Fourth Proportional to 8,338.68, 12,513.42 and 3,961.08

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Solution

The fourth proportional to 8,338.68, 12,513.42 and 3,961.08 is: 5,944.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,338.68 : 12,513.42 = 3,961.08 : x
  2. Step 2: Convert to fraction form
    8,338.68/12,513.42 = 3,961.08/x
  3. Step 3: Cross multiply
    8,338.68x = 12,513.42 × 3,961.08
  4. Step 4: Simplify right side
    8,338.68x = 49,566,657.69
  5. Step 5: Solve for x
    x = 49,566,657.69/8,338.68
  6. Step 6: Final answer
    x = 5,944.19

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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.