Home / 11,845.38-17,768.13-4,919.88

Finding the Fourth Proportional to 11,845.38, 17,768.13 and 4,919.88

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Solution

The fourth proportional to 11,845.38, 17,768.13 and 4,919.88 is: 7,379.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,845.38 : 17,768.13 = 4,919.88 : x
  2. Step 2: Convert to fraction form
    11,845.38/17,768.13 = 4,919.88/x
  3. Step 3: Cross multiply
    11,845.38x = 17,768.13 × 4,919.88
  4. Step 4: Simplify right side
    11,845.38x = 87,417,067.42
  5. Step 5: Solve for x
    x = 87,417,067.42/11,845.38
  6. Step 6: Final answer
    x = 7,379.84

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.