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Finding the Fourth Proportional to 10,154.80, 15,231.80 and 3,229.04

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Solution

The fourth proportional to 10,154.80, 15,231.80 and 3,229.04 is: 4,843.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,154.80 : 15,231.80 = 3,229.04 : x
  2. Step 2: Convert to fraction form
    10,154.80/15,231.80 = 3,229.04/x
  3. Step 3: Cross multiply
    10,154.80x = 15,231.80 × 3,229.04
  4. Step 4: Simplify right side
    10,154.80x = 49,184,091.47
  5. Step 5: Solve for x
    x = 49,184,091.47/10,154.80
  6. Step 6: Final answer
    x = 4,843.43

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1.5x scale

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.