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Finding the Fourth Proportional to 8,988.52, 13,474.50 and 3,791.56

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Solution

The fourth proportional to 8,988.52, 13,474.50 and 3,791.56 is: 5,683.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,988.52 : 13,474.50 = 3,791.56 : x
  2. Step 2: Convert to fraction form
    8,988.52/13,474.50 = 3,791.56/x
  3. Step 3: Cross multiply
    8,988.52x = 13,474.50 × 3,791.56
  4. Step 4: Simplify right side
    8,988.52x = 51,089,375.22
  5. Step 5: Solve for x
    x = 51,089,375.22/8,988.52
  6. Step 6: Final answer
    x = 5,683.85

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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.