Home / 11,821.65-17,716.07-5,971.42

Finding the Fourth Proportional to 11,821.65, 17,716.07 and 5,971.42

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Solution

The fourth proportional to 11,821.65, 17,716.07 and 5,971.42 is: 8,948.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,821.65 : 17,716.07 = 5,971.42 : x
  2. Step 2: Convert to fraction form
    11,821.65/17,716.07 = 5,971.42/x
  3. Step 3: Cross multiply
    11,821.65x = 17,716.07 × 5,971.42
  4. Step 4: Simplify right side
    11,821.65x = 105,790,098.20
  5. Step 5: Solve for x
    x = 105,790,098.20/11,821.65
  6. Step 6: Final answer
    x = 8,948.85

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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.