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Finding the Fourth Proportional to 6,706.31, 9,255.11 and 3,874.20

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Solution

The fourth proportional to 6,706.31, 9,255.11 and 3,874.20 is: 5,346.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,706.31 : 9,255.11 = 3,874.20 : x
  2. Step 2: Convert to fraction form
    6,706.31/9,255.11 = 3,874.20/x
  3. Step 3: Cross multiply
    6,706.31x = 9,255.11 × 3,874.20
  4. Step 4: Simplify right side
    6,706.31x = 35,856,127.79
  5. Step 5: Solve for x
    x = 35,856,127.79/6,706.31
  6. Step 6: Final answer
    x = 5,346.63

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1.5x scale

Why These Related Problems?

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