Home / 11,381.09-17,067.31-3,481.20

Finding the Fourth Proportional to 11,381.09, 17,067.31 and 3,481.20

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Solution

The fourth proportional to 11,381.09, 17,067.31 and 3,481.20 is: 5,220.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.09 : 17,067.31 = 3,481.20 : x
  2. Step 2: Convert to fraction form
    11,381.09/17,067.31 = 3,481.20/x
  3. Step 3: Cross multiply
    11,381.09x = 17,067.31 × 3,481.20
  4. Step 4: Simplify right side
    11,381.09x = 59,414,710.87
  5. Step 5: Solve for x
    x = 59,414,710.87/11,381.09
  6. Step 6: Final answer
    x = 5,220.48

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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.