Home / 26,138.75-39,202.24-7,418.38

Finding the Fourth Proportional to 26,138.75, 39,202.24 and 7,418.38

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Solution

The fourth proportional to 26,138.75, 39,202.24 and 7,418.38 is: 11,125.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,138.75 : 39,202.24 = 7,418.38 : x
  2. Step 2: Convert to fraction form
    26,138.75/39,202.24 = 7,418.38/x
  3. Step 3: Cross multiply
    26,138.75x = 39,202.24 × 7,418.38
  4. Step 4: Simplify right side
    26,138.75x = 290,816,996.62
  5. Step 5: Solve for x
    x = 290,816,996.62/26,138.75
  6. Step 6: Final answer
    x = 11,125.90

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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.