Home / 11,105.62-15,324.27-7,132.11

Finding the Fourth Proportional to 11,105.62, 15,324.27 and 7,132.11

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Solution

The fourth proportional to 11,105.62, 15,324.27 and 7,132.11 is: 9,841.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,105.62 : 15,324.27 = 7,132.11 : x
  2. Step 2: Convert to fraction form
    11,105.62/15,324.27 = 7,132.11/x
  3. Step 3: Cross multiply
    11,105.62x = 15,324.27 × 7,132.11
  4. Step 4: Simplify right side
    11,105.62x = 109,294,343.65
  5. Step 5: Solve for x
    x = 109,294,343.65/11,105.62
  6. Step 6: Final answer
    x = 9,841.36

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.