Home / 9,251.57-12,761.97-5,712.26

Finding the Fourth Proportional to 9,251.57, 12,761.97 and 5,712.26

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Solution

The fourth proportional to 9,251.57, 12,761.97 and 5,712.26 is: 7,879.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,251.57 : 12,761.97 = 5,712.26 : x
  2. Step 2: Convert to fraction form
    9,251.57/12,761.97 = 5,712.26/x
  3. Step 3: Cross multiply
    9,251.57x = 12,761.97 × 5,712.26
  4. Step 4: Simplify right side
    9,251.57x = 72,899,690.75
  5. Step 5: Solve for x
    x = 72,899,690.75/9,251.57
  6. Step 6: Final answer
    x = 7,879.71

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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.