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Finding the Fourth Proportional to 8,388.31, 12,582.47 and 8,250.41

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Solution

The fourth proportional to 8,388.31, 12,582.47 and 8,250.41 is: 12,375.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,388.31 : 12,582.47 = 8,250.41 : x
  2. Step 2: Convert to fraction form
    8,388.31/12,582.47 = 8,250.41/x
  3. Step 3: Cross multiply
    8,388.31x = 12,582.47 × 8,250.41
  4. Step 4: Simplify right side
    8,388.31x = 103,810,536.31
  5. Step 5: Solve for x
    x = 103,810,536.31/8,388.31
  6. Step 6: Final answer
    x = 12,375.62

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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.