Home / 11,251.33-16,879.40-3,853.81

Finding the Fourth Proportional to 11,251.33, 16,879.40 and 3,853.81

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Solution

The fourth proportional to 11,251.33, 16,879.40 and 3,853.81 is: 5,781.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,251.33 : 16,879.40 = 3,853.81 : x
  2. Step 2: Convert to fraction form
    11,251.33/16,879.40 = 3,853.81/x
  3. Step 3: Cross multiply
    11,251.33x = 16,879.40 × 3,853.81
  4. Step 4: Simplify right side
    11,251.33x = 65,050,000.51
  5. Step 5: Solve for x
    x = 65,050,000.51/11,251.33
  6. Step 6: Final answer
    x = 5,781.54

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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.