Home / 12,079.14-18,118.17-4,287.84

Finding the Fourth Proportional to 12,079.14, 18,118.17 and 4,287.84

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Solution

The fourth proportional to 12,079.14, 18,118.17 and 4,287.84 is: 6,431.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,079.14 : 18,118.17 = 4,287.84 : x
  2. Step 2: Convert to fraction form
    12,079.14/18,118.17 = 4,287.84/x
  3. Step 3: Cross multiply
    12,079.14x = 18,118.17 × 4,287.84
  4. Step 4: Simplify right side
    12,079.14x = 77,687,814.05
  5. Step 5: Solve for x
    x = 77,687,814.05/12,079.14
  6. Step 6: Final answer
    x = 6,431.57

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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.