Home / 11,869.65-17,788.07-10,105.47

Finding the Fourth Proportional to 11,869.65, 17,788.07 and 10,105.47

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Solution

The fourth proportional to 11,869.65, 17,788.07 and 10,105.47 is: 15,144.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,869.65 : 17,788.07 = 10,105.47 : x
  2. Step 2: Convert to fraction form
    11,869.65/17,788.07 = 10,105.47/x
  3. Step 3: Cross multiply
    11,869.65x = 17,788.07 × 10,105.47
  4. Step 4: Simplify right side
    11,869.65x = 179,756,757.22
  5. Step 5: Solve for x
    x = 179,756,757.22/11,869.65
  6. Step 6: Final answer
    x = 15,144.23

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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.