Home / 11,815.05-17,722.57-3,494.42

Finding the Fourth Proportional to 11,815.05, 17,722.57 and 3,494.42

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Solution

The fourth proportional to 11,815.05, 17,722.57 and 3,494.42 is: 5,241.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,815.05 : 17,722.57 = 3,494.42 : x
  2. Step 2: Convert to fraction form
    11,815.05/17,722.57 = 3,494.42/x
  3. Step 3: Cross multiply
    11,815.05x = 17,722.57 × 3,494.42
  4. Step 4: Simplify right side
    11,815.05x = 61,930,067.49
  5. Step 5: Solve for x
    x = 61,930,067.49/11,815.05
  6. Step 6: Final answer
    x = 5,241.63

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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.