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Finding the Fourth Proportional to 8,409.02, 12,617.17 and 4,508.87

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Solution

The fourth proportional to 8,409.02, 12,617.17 and 4,508.87 is: 6,765.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,409.02 : 12,617.17 = 4,508.87 : x
  2. Step 2: Convert to fraction form
    8,409.02/12,617.17 = 4,508.87/x
  3. Step 3: Cross multiply
    8,409.02x = 12,617.17 × 4,508.87
  4. Step 4: Simplify right side
    8,409.02x = 56,889,104.94
  5. Step 5: Solve for x
    x = 56,889,104.94/8,409.02
  6. Step 6: Final answer
    x = 6,765.25

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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.