Home / 12,452.06-18,678.09-3,687.74

Finding the Fourth Proportional to 12,452.06, 18,678.09 and 3,687.74

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Solution

The fourth proportional to 12,452.06, 18,678.09 and 3,687.74 is: 5,531.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,452.06 : 18,678.09 = 3,687.74 : x
  2. Step 2: Convert to fraction form
    12,452.06/18,678.09 = 3,687.74/x
  3. Step 3: Cross multiply
    12,452.06x = 18,678.09 × 3,687.74
  4. Step 4: Simplify right side
    12,452.06x = 68,879,939.62
  5. Step 5: Solve for x
    x = 68,879,939.62/12,452.06
  6. Step 6: Final answer
    x = 5,531.61

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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.