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Finding the Fourth Proportional to 8,512.84, 12,769.27 and 2,669.91

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Solution

The fourth proportional to 8,512.84, 12,769.27 and 2,669.91 is: 4,004.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,512.84 : 12,769.27 = 2,669.91 : x
  2. Step 2: Convert to fraction form
    8,512.84/12,769.27 = 2,669.91/x
  3. Step 3: Cross multiply
    8,512.84x = 12,769.27 × 2,669.91
  4. Step 4: Simplify right side
    8,512.84x = 34,092,747.11
  5. Step 5: Solve for x
    x = 34,092,747.11/8,512.84
  6. Step 6: Final answer
    x = 4,004.86

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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.