Home / 8,104.72-12,153.24-3,720.88

Finding the Fourth Proportional to 8,104.72, 12,153.24 and 3,720.88

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Solution

The fourth proportional to 8,104.72, 12,153.24 and 3,720.88 is: 5,579.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.72 : 12,153.24 = 3,720.88 : x
  2. Step 2: Convert to fraction form
    8,104.72/12,153.24 = 3,720.88/x
  3. Step 3: Cross multiply
    8,104.72x = 12,153.24 × 3,720.88
  4. Step 4: Simplify right side
    8,104.72x = 45,220,747.65
  5. Step 5: Solve for x
    x = 45,220,747.65/8,104.72
  6. Step 6: Final answer
    x = 5,579.56

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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.