Home / 11,930.27-17,867.70-11,515.09

Finding the Fourth Proportional to 11,930.27, 17,867.70 and 11,515.09

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Solution

The fourth proportional to 11,930.27, 17,867.70 and 11,515.09 is: 17,245.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,930.27 : 17,867.70 = 11,515.09 : x
  2. Step 2: Convert to fraction form
    11,930.27/17,867.70 = 11,515.09/x
  3. Step 3: Cross multiply
    11,930.27x = 17,867.70 × 11,515.09
  4. Step 4: Simplify right side
    11,930.27x = 205,748,128.92
  5. Step 5: Solve for x
    x = 205,748,128.92/11,930.27
  6. Step 6: Final answer
    x = 17,245.90

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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.