Home / 11,251.21-16,879.21-3,853.69

Finding the Fourth Proportional to 11,251.21, 16,879.21 and 3,853.69

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Solution

The fourth proportional to 11,251.21, 16,879.21 and 3,853.69 is: 5,781.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,251.21 : 16,879.21 = 3,853.69 : x
  2. Step 2: Convert to fraction form
    11,251.21/16,879.21 = 3,853.69/x
  3. Step 3: Cross multiply
    11,251.21x = 16,879.21 × 3,853.69
  4. Step 4: Simplify right side
    11,251.21x = 65,047,189.12
  5. Step 5: Solve for x
    x = 65,047,189.12/11,251.21
  6. Step 6: Final answer
    x = 5,781.35

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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.