Home / 11,144.40-16,723.92-4,218.96

Finding the Fourth Proportional to 11,144.40, 16,723.92 and 4,218.96

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Solution

The fourth proportional to 11,144.40, 16,723.92 and 4,218.96 is: 6,331.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.40 : 16,723.92 = 4,218.96 : x
  2. Step 2: Convert to fraction form
    11,144.40/16,723.92 = 4,218.96/x
  3. Step 3: Cross multiply
    11,144.40x = 16,723.92 × 4,218.96
  4. Step 4: Simplify right side
    11,144.40x = 70,557,549.52
  5. Step 5: Solve for x
    x = 70,557,549.52/11,144.40
  6. Step 6: Final answer
    x = 6,331.21

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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.