Home / 12,256.62-18,383.19-3,935.57

Finding the Fourth Proportional to 12,256.62, 18,383.19 and 3,935.57

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Solution

The fourth proportional to 12,256.62, 18,383.19 and 3,935.57 is: 5,902.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.62 : 18,383.19 = 3,935.57 : x
  2. Step 2: Convert to fraction form
    12,256.62/18,383.19 = 3,935.57/x
  3. Step 3: Cross multiply
    12,256.62x = 18,383.19 × 3,935.57
  4. Step 4: Simplify right side
    12,256.62x = 72,348,239.15
  5. Step 5: Solve for x
    x = 72,348,239.15/12,256.62
  6. Step 6: Final answer
    x = 5,902.79

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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.