Home / 18,129.36-27,194.07-4,981.83

Finding the Fourth Proportional to 18,129.36, 27,194.07 and 4,981.83

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Solution

The fourth proportional to 18,129.36, 27,194.07 and 4,981.83 is: 7,472.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129.36 : 27,194.07 = 4,981.83 : x
  2. Step 2: Convert to fraction form
    18,129.36/27,194.07 = 4,981.83/x
  3. Step 3: Cross multiply
    18,129.36x = 27,194.07 × 4,981.83
  4. Step 4: Simplify right side
    18,129.36x = 135,476,233.75
  5. Step 5: Solve for x
    x = 135,476,233.75/18,129.36
  6. Step 6: Final answer
    x = 7,472.75

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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.