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Finding the Fourth Proportional to 8,398.26, 12,599.55 and 3,204.54

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Solution

The fourth proportional to 8,398.26, 12,599.55 and 3,204.54 is: 4,807.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,398.26 : 12,599.55 = 3,204.54 : x
  2. Step 2: Convert to fraction form
    8,398.26/12,599.55 = 3,204.54/x
  3. Step 3: Cross multiply
    8,398.26x = 12,599.55 × 3,204.54
  4. Step 4: Simplify right side
    8,398.26x = 40,375,761.96
  5. Step 5: Solve for x
    x = 40,375,761.96/8,398.26
  6. Step 6: Final answer
    x = 4,807.63

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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.