Home / 8,761.05-13,131.80-3,494.68

Finding the Fourth Proportional to 8,761.05, 13,131.80 and 3,494.68

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Solution

The fourth proportional to 8,761.05, 13,131.80 and 3,494.68 is: 5,238.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,761.05 : 13,131.80 = 3,494.68 : x
  2. Step 2: Convert to fraction form
    8,761.05/13,131.80 = 3,494.68/x
  3. Step 3: Cross multiply
    8,761.05x = 13,131.80 × 3,494.68
  4. Step 4: Simplify right side
    8,761.05x = 45,891,438.82
  5. Step 5: Solve for x
    x = 45,891,438.82/8,761.05
  6. Step 6: Final answer
    x = 5,238.12

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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.