Home / 11,419.45-17,131.29-4,028.61

Finding the Fourth Proportional to 11,419.45, 17,131.29 and 4,028.61

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Solution

The fourth proportional to 11,419.45, 17,131.29 and 4,028.61 is: 6,043.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,419.45 : 17,131.29 = 4,028.61 : x
  2. Step 2: Convert to fraction form
    11,419.45/17,131.29 = 4,028.61/x
  3. Step 3: Cross multiply
    11,419.45x = 17,131.29 × 4,028.61
  4. Step 4: Simplify right side
    11,419.45x = 69,015,286.21
  5. Step 5: Solve for x
    x = 69,015,286.21/11,419.45
  6. Step 6: Final answer
    x = 6,043.66

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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.