Home / 8,517.42-12,761.46-6,647.04

Finding the Fourth Proportional to 8,517.42, 12,761.46 and 6,647.04

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Solution

The fourth proportional to 8,517.42, 12,761.46 and 6,647.04 is: 9,959.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,517.42 : 12,761.46 = 6,647.04 : x
  2. Step 2: Convert to fraction form
    8,517.42/12,761.46 = 6,647.04/x
  3. Step 3: Cross multiply
    8,517.42x = 12,761.46 × 6,647.04
  4. Step 4: Simplify right side
    8,517.42x = 84,825,935.08
  5. Step 5: Solve for x
    x = 84,825,935.08/8,517.42
  6. Step 6: Final answer
    x = 9,959.11

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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.