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Finding the Fourth Proportional to 8,453.10, 12,679.65 and 8,049.90

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Solution

The fourth proportional to 8,453.10, 12,679.65 and 8,049.90 is: 12,074.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,453.10 : 12,679.65 = 8,049.90 : x
  2. Step 2: Convert to fraction form
    8,453.10/12,679.65 = 8,049.90/x
  3. Step 3: Cross multiply
    8,453.10x = 12,679.65 × 8,049.90
  4. Step 4: Simplify right side
    8,453.10x = 102,069,914.54
  5. Step 5: Solve for x
    x = 102,069,914.54/8,453.10
  6. Step 6: Final answer
    x = 12,074.85

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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.