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Finding the Fourth Proportional to 8,576.86, 12,808 and 7,331.26

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Solution

The fourth proportional to 8,576.86, 12,808 and 7,331.26 is: 10,947.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,576.86 : 12,808 = 7,331.26 : x
  2. Step 2: Convert to fraction form
    8,576.86/12,808 = 7,331.26/x
  3. Step 3: Cross multiply
    8,576.86x = 12,808 × 7,331.26
  4. Step 4: Simplify right side
    8,576.86x = 93,898,778.08
  5. Step 5: Solve for x
    x = 93,898,778.08/8,576.86
  6. Step 6: Final answer
    x = 10,947.92

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.