Home / 7,517.82-11,276.91-2,587.71

Finding the Fourth Proportional to 7,517.82, 11,276.91 and 2,587.71

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Solution

The fourth proportional to 7,517.82, 11,276.91 and 2,587.71 is: 3,881.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,517.82 : 11,276.91 = 2,587.71 : x
  2. Step 2: Convert to fraction form
    7,517.82/11,276.91 = 2,587.71/x
  3. Step 3: Cross multiply
    7,517.82x = 11,276.91 × 2,587.71
  4. Step 4: Simplify right side
    7,517.82x = 29,181,372.78
  5. Step 5: Solve for x
    x = 29,181,372.78/7,517.82
  6. Step 6: Final answer
    x = 3,881.63

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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.