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Finding the Fourth Proportional to 8,684.90, 13,024.11 and 3,489.02

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Solution

The fourth proportional to 8,684.90, 13,024.11 and 3,489.02 is: 5,232.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,684.90 : 13,024.11 = 3,489.02 : x
  2. Step 2: Convert to fraction form
    8,684.90/13,024.11 = 3,489.02/x
  3. Step 3: Cross multiply
    8,684.90x = 13,024.11 × 3,489.02
  4. Step 4: Simplify right side
    8,684.90x = 45,441,380.27
  5. Step 5: Solve for x
    x = 45,441,380.27/8,684.90
  6. Step 6: Final answer
    x = 5,232.23

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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.