Home / 11,911.91-17,867.35-4,013.90

Finding the Fourth Proportional to 11,911.91, 17,867.35 and 4,013.90

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Solution

The fourth proportional to 11,911.91, 17,867.35 and 4,013.90 is: 6,020.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,911.91 : 17,867.35 = 4,013.90 : x
  2. Step 2: Convert to fraction form
    11,911.91/17,867.35 = 4,013.90/x
  3. Step 3: Cross multiply
    11,911.91x = 17,867.35 × 4,013.90
  4. Step 4: Simplify right side
    11,911.91x = 71,717,736.10
  5. Step 5: Solve for x
    x = 71,717,736.10/11,911.91
  6. Step 6: Final answer
    x = 6,020.68

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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.