Home / 12,747.59-19,121.39-3,983.26

Finding the Fourth Proportional to 12,747.59, 19,121.39 and 3,983.26

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Solution

The fourth proportional to 12,747.59, 19,121.39 and 3,983.26 is: 5,974.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,747.59 : 19,121.39 = 3,983.26 : x
  2. Step 2: Convert to fraction form
    12,747.59/19,121.39 = 3,983.26/x
  3. Step 3: Cross multiply
    12,747.59x = 19,121.39 × 3,983.26
  4. Step 4: Simplify right side
    12,747.59x = 76,165,467.93
  5. Step 5: Solve for x
    x = 76,165,467.93/12,747.59
  6. Step 6: Final answer
    x = 5,974.89

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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.