Home / 11,067.80-15,279.75-7,301.90

Finding the Fourth Proportional to 11,067.80, 15,279.75 and 7,301.90

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Solution

The fourth proportional to 11,067.80, 15,279.75 and 7,301.90 is: 10,080.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,067.80 : 15,279.75 = 7,301.90 : x
  2. Step 2: Convert to fraction form
    11,067.80/15,279.75 = 7,301.90/x
  3. Step 3: Cross multiply
    11,067.80x = 15,279.75 × 7,301.90
  4. Step 4: Simplify right side
    11,067.80x = 111,571,244.72
  5. Step 5: Solve for x
    x = 111,571,244.72/11,067.80
  6. Step 6: Final answer
    x = 10,080.71

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.