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Finding the Fourth Proportional to 8,512.65, 12,757.89 and 4,764.27

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Solution

The fourth proportional to 8,512.65, 12,757.89 and 4,764.27 is: 7,140.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.65 : 12,757.89 = 4,764.27 : x
  2. Step 2: Convert to fraction form
    8,512.65/12,757.89 = 4,764.27/x
  3. Step 3: Cross multiply
    8,512.65x = 12,757.89 × 4,764.27
  4. Step 4: Simplify right side
    8,512.65x = 60,782,032.59
  5. Step 5: Solve for x
    x = 60,782,032.59/8,512.65
  6. Step 6: Final answer
    x = 7,140.20

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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.