Home / 8,763.28-13,145.82-2,839.72

Finding the Fourth Proportional to 8,763.28, 13,145.82 and 2,839.72

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Solution

The fourth proportional to 8,763.28, 13,145.82 and 2,839.72 is: 4,259.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,763.28 : 13,145.82 = 2,839.72 : x
  2. Step 2: Convert to fraction form
    8,763.28/13,145.82 = 2,839.72/x
  3. Step 3: Cross multiply
    8,763.28x = 13,145.82 × 2,839.72
  4. Step 4: Simplify right side
    8,763.28x = 37,330,447.97
  5. Step 5: Solve for x
    x = 37,330,447.97/8,763.28
  6. Step 6: Final answer
    x = 4,259.87

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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.