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Finding the Fourth Proportional to 8,739.88, 13,099.40 and 5,034.43

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Solution

The fourth proportional to 8,739.88, 13,099.40 and 5,034.43 is: 7,545.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,739.88 : 13,099.40 = 5,034.43 : x
  2. Step 2: Convert to fraction form
    8,739.88/13,099.40 = 5,034.43/x
  3. Step 3: Cross multiply
    8,739.88x = 13,099.40 × 5,034.43
  4. Step 4: Simplify right side
    8,739.88x = 65,947,954.42
  5. Step 5: Solve for x
    x = 65,947,954.42/8,739.88
  6. Step 6: Final answer
    x = 7,545.64

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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.