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Finding the Fourth Proportional to 8,760.82, 13,139.81 and 2,519.41

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Solution

The fourth proportional to 8,760.82, 13,139.81 and 2,519.41 is: 3,778.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,760.82 : 13,139.81 = 2,519.41 : x
  2. Step 2: Convert to fraction form
    8,760.82/13,139.81 = 2,519.41/x
  3. Step 3: Cross multiply
    8,760.82x = 13,139.81 × 2,519.41
  4. Step 4: Simplify right side
    8,760.82x = 33,104,568.71
  5. Step 5: Solve for x
    x = 33,104,568.71/8,760.82
  6. Step 6: Final answer
    x = 3,778.71

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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.