Home / 13,387.82-20,067.14-8,994.38

Finding the Fourth Proportional to 13,387.82, 20,067.14 and 8,994.38

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Solution

The fourth proportional to 13,387.82, 20,067.14 and 8,994.38 is: 13,481.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,387.82 : 20,067.14 = 8,994.38 : x
  2. Step 2: Convert to fraction form
    13,387.82/20,067.14 = 8,994.38/x
  3. Step 3: Cross multiply
    13,387.82x = 20,067.14 × 8,994.38
  4. Step 4: Simplify right side
    13,387.82x = 180,491,404.82
  5. Step 5: Solve for x
    x = 180,491,404.82/13,387.82
  6. Step 6: Final answer
    x = 13,481.77

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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.