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Finding the Fourth Proportional to 6,912.60, 10,353.78 and 6,760.41

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Solution

The fourth proportional to 6,912.60, 10,353.78 and 6,760.41 is: 10,125.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.60 : 10,353.78 = 6,760.41 : x
  2. Step 2: Convert to fraction form
    6,912.60/10,353.78 = 6,760.41/x
  3. Step 3: Cross multiply
    6,912.60x = 10,353.78 × 6,760.41
  4. Step 4: Simplify right side
    6,912.60x = 69,995,797.85
  5. Step 5: Solve for x
    x = 69,995,797.85/6,912.60
  6. Step 6: Final answer
    x = 10,125.83

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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.