Home / 8,759.16-13,139.40-2,519.13

Finding the Fourth Proportional to 8,759.16, 13,139.40 and 2,519.13

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Solution

The fourth proportional to 8,759.16, 13,139.40 and 2,519.13 is: 3,778.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,759.16 : 13,139.40 = 2,519.13 : x
  2. Step 2: Convert to fraction form
    8,759.16/13,139.40 = 2,519.13/x
  3. Step 3: Cross multiply
    8,759.16x = 13,139.40 × 2,519.13
  4. Step 4: Simplify right side
    8,759.16x = 33,099,856.72
  5. Step 5: Solve for x
    x = 33,099,856.72/8,759.16
  6. Step 6: Final answer
    x = 3,778.88

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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.