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Finding the Fourth Proportional to 6,712.40, 10,049.40 and 6,520.40

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Solution

The fourth proportional to 6,712.40, 10,049.40 and 6,520.40 is: 9,761.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,712.40 : 10,049.40 = 6,520.40 : x
  2. Step 2: Convert to fraction form
    6,712.40/10,049.40 = 6,520.40/x
  3. Step 3: Cross multiply
    6,712.40x = 10,049.40 × 6,520.40
  4. Step 4: Simplify right side
    6,712.40x = 65,526,107.76
  5. Step 5: Solve for x
    x = 65,526,107.76/6,712.40
  6. Step 6: Final answer
    x = 9,761.95

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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.