Home / 6,456.20-9,672.28-5,422.92

Finding the Fourth Proportional to 6,456.20, 9,672.28 and 5,422.92

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Solution

The fourth proportional to 6,456.20, 9,672.28 and 5,422.92 is: 8,124.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,456.20 : 9,672.28 = 5,422.92 : x
  2. Step 2: Convert to fraction form
    6,456.20/9,672.28 = 5,422.92/x
  3. Step 3: Cross multiply
    6,456.20x = 9,672.28 × 5,422.92
  4. Step 4: Simplify right side
    6,456.20x = 52,452,000.66
  5. Step 5: Solve for x
    x = 52,452,000.66/6,456.20
  6. Step 6: Final answer
    x = 8,124.28

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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.