Home / 18,949.62-28,408.35-7,849.38

Finding the Fourth Proportional to 18,949.62, 28,408.35 and 7,849.38

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Solution

The fourth proportional to 18,949.62, 28,408.35 and 7,849.38 is: 11,767.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,949.62 : 28,408.35 = 7,849.38 : x
  2. Step 2: Convert to fraction form
    18,949.62/28,408.35 = 7,849.38/x
  3. Step 3: Cross multiply
    18,949.62x = 28,408.35 × 7,849.38
  4. Step 4: Simplify right side
    18,949.62x = 222,987,934.32
  5. Step 5: Solve for x
    x = 222,987,934.32/18,949.62
  6. Step 6: Final answer
    x = 11,767.41

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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.