Home / 8,761.28-13,142.82-2,837.72

Finding the Fourth Proportional to 8,761.28, 13,142.82 and 2,837.72

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Solution

The fourth proportional to 8,761.28, 13,142.82 and 2,837.72 is: 4,256.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.28 : 13,142.82 = 2,837.72 : x
  2. Step 2: Convert to fraction form
    8,761.28/13,142.82 = 2,837.72/x
  3. Step 3: Cross multiply
    8,761.28x = 13,142.82 × 2,837.72
  4. Step 4: Simplify right side
    8,761.28x = 37,295,643.17
  5. Step 5: Solve for x
    x = 37,295,643.17/8,761.28
  6. Step 6: Final answer
    x = 4,256.87

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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.