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Finding the Fourth Proportional to 8,079.72, 11,150.02 and 4,542.90

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Solution

The fourth proportional to 8,079.72, 11,150.02 and 4,542.90 is: 6,269.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,079.72 : 11,150.02 = 4,542.90 : x
  2. Step 2: Convert to fraction form
    8,079.72/11,150.02 = 4,542.90/x
  3. Step 3: Cross multiply
    8,079.72x = 11,150.02 × 4,542.90
  4. Step 4: Simplify right side
    8,079.72x = 50,653,425.86
  5. Step 5: Solve for x
    x = 50,653,425.86/8,079.72
  6. Step 6: Final answer
    x = 6,269.21

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.