Home / 10,144.75-15,217.13-3,219.25

Finding the Fourth Proportional to 10,144.75, 15,217.13 and 3,219.25

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Solution

The fourth proportional to 10,144.75, 15,217.13 and 3,219.25 is: 4,828.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,144.75 : 15,217.13 = 3,219.25 : x
  2. Step 2: Convert to fraction form
    10,144.75/15,217.13 = 3,219.25/x
  3. Step 3: Cross multiply
    10,144.75x = 15,217.13 × 3,219.25
  4. Step 4: Simplify right side
    10,144.75x = 48,987,745.75
  5. Step 5: Solve for x
    x = 48,987,745.75/10,144.75
  6. Step 6: Final answer
    x = 4,828.88

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Double scale
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Similar ratio
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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.