Home / 14,080.30-21,119.37-3,691.78

Finding the Fourth Proportional to 14,080.30, 21,119.37 and 3,691.78

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Solution

The fourth proportional to 14,080.30, 21,119.37 and 3,691.78 is: 5,537.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,080.30 : 21,119.37 = 3,691.78 : x
  2. Step 2: Convert to fraction form
    14,080.30/21,119.37 = 3,691.78/x
  3. Step 3: Cross multiply
    14,080.30x = 21,119.37 × 3,691.78
  4. Step 4: Simplify right side
    14,080.30x = 77,968,067.78
  5. Step 5: Solve for x
    x = 77,968,067.78/14,080.30
  6. Step 6: Final answer
    x = 5,537.39

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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.