Home / 10,067.70-15,099.39-3,138.42

Finding the Fourth Proportional to 10,067.70, 15,099.39 and 3,138.42

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Solution

The fourth proportional to 10,067.70, 15,099.39 and 3,138.42 is: 4,706.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,067.70 : 15,099.39 = 3,138.42 : x
  2. Step 2: Convert to fraction form
    10,067.70/15,099.39 = 3,138.42/x
  3. Step 3: Cross multiply
    10,067.70x = 15,099.39 × 3,138.42
  4. Step 4: Simplify right side
    10,067.70x = 47,388,227.56
  5. Step 5: Solve for x
    x = 47,388,227.56/10,067.70
  6. Step 6: Final answer
    x = 4,706.96

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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.