Home / 12,115.44-18,170.11-8,595.18

Finding the Fourth Proportional to 12,115.44, 18,170.11 and 8,595.18

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Solution

The fourth proportional to 12,115.44, 18,170.11 and 8,595.18 is: 12,890.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,115.44 : 18,170.11 = 8,595.18 : x
  2. Step 2: Convert to fraction form
    12,115.44/18,170.11 = 8,595.18/x
  3. Step 3: Cross multiply
    12,115.44x = 18,170.11 × 8,595.18
  4. Step 4: Simplify right side
    12,115.44x = 156,175,366.07
  5. Step 5: Solve for x
    x = 156,175,366.07/12,115.44
  6. Step 6: Final answer
    x = 12,890.61

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Half scale
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Double scale
Find fourth proportional to 12,116.44, 18,171.61 and 8,596.18
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.