Home / 16,121.26-24,188.82-8,731

Finding the Fourth Proportional to 16,121.26, 24,188.82 and 8,731

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Solution

The fourth proportional to 16,121.26, 24,188.82 and 8,731 is: 13,100.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,121.26 : 24,188.82 = 8,731 : x
  2. Step 2: Convert to fraction form
    16,121.26/24,188.82 = 8,731/x
  3. Step 3: Cross multiply
    16,121.26x = 24,188.82 × 8,731
  4. Step 4: Simplify right side
    16,121.26x = 211,192,587.42
  5. Step 5: Solve for x
    x = 211,192,587.42/16,121.26
  6. Step 6: Final answer
    x = 13,100.25

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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.