Home / 11,747.90-17,621.68-2,863.28

Finding the Fourth Proportional to 11,747.90, 17,621.68 and 2,863.28

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Solution

The fourth proportional to 11,747.90, 17,621.68 and 2,863.28 is: 4,294.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,747.90 : 17,621.68 = 2,863.28 : x
  2. Step 2: Convert to fraction form
    11,747.90/17,621.68 = 2,863.28/x
  3. Step 3: Cross multiply
    11,747.90x = 17,621.68 × 2,863.28
  4. Step 4: Simplify right side
    11,747.90x = 50,455,803.91
  5. Step 5: Solve for x
    x = 50,455,803.91/11,747.90
  6. Step 6: Final answer
    x = 4,294.88

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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.