Home / 11,938.14-17,910.78-4,818.71

Finding the Fourth Proportional to 11,938.14, 17,910.78 and 4,818.71

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Solution

The fourth proportional to 11,938.14, 17,910.78 and 4,818.71 is: 7,229.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,938.14 : 17,910.78 = 4,818.71 : x
  2. Step 2: Convert to fraction form
    11,938.14/17,910.78 = 4,818.71/x
  3. Step 3: Cross multiply
    11,938.14x = 17,910.78 × 4,818.71
  4. Step 4: Simplify right side
    11,938.14x = 86,306,864.91
  5. Step 5: Solve for x
    x = 86,306,864.91/11,938.14
  6. Step 6: Final answer
    x = 7,229.51

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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.