Home / 8,680.27-11,974.86-5,141.44

Finding the Fourth Proportional to 8,680.27, 11,974.86 and 5,141.44

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Solution

The fourth proportional to 8,680.27, 11,974.86 and 5,141.44 is: 7,092.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,680.27 : 11,974.86 = 5,141.44 : x
  2. Step 2: Convert to fraction form
    8,680.27/11,974.86 = 5,141.44/x
  3. Step 3: Cross multiply
    8,680.27x = 11,974.86 × 5,141.44
  4. Step 4: Simplify right side
    8,680.27x = 61,568,024.20
  5. Step 5: Solve for x
    x = 61,568,024.20/8,680.27
  6. Step 6: Final answer
    x = 7,092.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.