Home / 10,198.98-15,299.98-3,179.66

Finding the Fourth Proportional to 10,198.98, 15,299.98 and 3,179.66

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Solution

The fourth proportional to 10,198.98, 15,299.98 and 3,179.66 is: 4,769.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,198.98 : 15,299.98 = 3,179.66 : x
  2. Step 2: Convert to fraction form
    10,198.98/15,299.98 = 3,179.66/x
  3. Step 3: Cross multiply
    10,198.98x = 15,299.98 × 3,179.66
  4. Step 4: Simplify right side
    10,198.98x = 48,648,734.41
  5. Step 5: Solve for x
    x = 48,648,734.41/10,198.98
  6. Step 6: Final answer
    x = 4,769.96

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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.