Home / 11,821.76-17,727.78-4,031.18

Finding the Fourth Proportional to 11,821.76, 17,727.78 and 4,031.18

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Solution

The fourth proportional to 11,821.76, 17,727.78 and 4,031.18 is: 6,045.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.76 : 17,727.78 = 4,031.18 : x
  2. Step 2: Convert to fraction form
    11,821.76/17,727.78 = 4,031.18/x
  3. Step 3: Cross multiply
    11,821.76x = 17,727.78 × 4,031.18
  4. Step 4: Simplify right side
    11,821.76x = 71,463,872.18
  5. Step 5: Solve for x
    x = 71,463,872.18/11,821.76
  6. Step 6: Final answer
    x = 6,045.11

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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.