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Finding the Fourth Proportional to 8,667, 12,998.32 and 2,425.39

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Solution

The fourth proportional to 8,667, 12,998.32 and 2,425.39 is: 3,637.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,667 : 12,998.32 = 2,425.39 : x
  2. Step 2: Convert to fraction form
    8,667/12,998.32 = 2,425.39/x
  3. Step 3: Cross multiply
    8,667x = 12,998.32 × 2,425.39
  4. Step 4: Simplify right side
    8,667x = 31,526,043.54
  5. Step 5: Solve for x
    x = 31,526,043.54/8,667
  6. Step 6: Final answer
    x = 3,637.48

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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.