Home / 8,517.20-12,771.40-2,672.24

Finding the Fourth Proportional to 8,517.20, 12,771.40 and 2,672.24

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Solution

The fourth proportional to 8,517.20, 12,771.40 and 2,672.24 is: 4,006.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.20 : 12,771.40 = 2,672.24 : x
  2. Step 2: Convert to fraction form
    8,517.20/12,771.40 = 2,672.24/x
  3. Step 3: Cross multiply
    8,517.20x = 12,771.40 × 2,672.24
  4. Step 4: Simplify right side
    8,517.20x = 34,128,245.94
  5. Step 5: Solve for x
    x = 34,128,245.94/8,517.20
  6. Step 6: Final answer
    x = 4,006.98

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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.