Home / 18,297.14-27,447.39-5,149.49

Finding the Fourth Proportional to 18,297.14, 27,447.39 and 5,149.49

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Solution

The fourth proportional to 18,297.14, 27,447.39 and 5,149.49 is: 7,724.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,297.14 : 27,447.39 = 5,149.49 : x
  2. Step 2: Convert to fraction form
    18,297.14/27,447.39 = 5,149.49/x
  3. Step 3: Cross multiply
    18,297.14x = 27,447.39 × 5,149.49
  4. Step 4: Simplify right side
    18,297.14x = 141,339,923.09
  5. Step 5: Solve for x
    x = 141,339,923.09/18,297.14
  6. Step 6: Final answer
    x = 7,724.70

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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.