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Finding the Fourth Proportional to 6,938.73, 9,576.36 and 3,953.88

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Solution

The fourth proportional to 6,938.73, 9,576.36 and 3,953.88 is: 5,456.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,938.73 : 9,576.36 = 3,953.88 : x
  2. Step 2: Convert to fraction form
    6,938.73/9,576.36 = 3,953.88/x
  3. Step 3: Cross multiply
    6,938.73x = 9,576.36 × 3,953.88
  4. Step 4: Simplify right side
    6,938.73x = 37,863,778.28
  5. Step 5: Solve for x
    x = 37,863,778.28/6,938.73
  6. Step 6: Final answer
    x = 5,456.87

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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.