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Finding the Fourth Proportional to 6,638.27, 9,963.54 and 3,353.66

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Solution

The fourth proportional to 6,638.27, 9,963.54 and 3,353.66 is: 5,033.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,638.27 : 9,963.54 = 3,353.66 : x
  2. Step 2: Convert to fraction form
    6,638.27/9,963.54 = 3,353.66/x
  3. Step 3: Cross multiply
    6,638.27x = 9,963.54 × 3,353.66
  4. Step 4: Simplify right side
    6,638.27x = 33,414,275.74
  5. Step 5: Solve for x
    x = 33,414,275.74/6,638.27
  6. Step 6: Final answer
    x = 5,033.59

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1.5x scale

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.