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Finding the Fourth Proportional to 8,399.92, 12,600.52 and 2,556.96

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Solution

The fourth proportional to 8,399.92, 12,600.52 and 2,556.96 is: 3,835.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,399.92 : 12,600.52 = 2,556.96 : x
  2. Step 2: Convert to fraction form
    8,399.92/12,600.52 = 2,556.96/x
  3. Step 3: Cross multiply
    8,399.92x = 12,600.52 × 2,556.96
  4. Step 4: Simplify right side
    8,399.92x = 32,219,025.62
  5. Step 5: Solve for x
    x = 32,219,025.62/8,399.92
  6. Step 6: Final answer
    x = 3,835.63

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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.