Home / 7,882.11-11,815.20-5,110.56

Finding the Fourth Proportional to 7,882.11, 11,815.20 and 5,110.56

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Solution

The fourth proportional to 7,882.11, 11,815.20 and 5,110.56 is: 7,660.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.11 : 11,815.20 = 5,110.56 : x
  2. Step 2: Convert to fraction form
    7,882.11/11,815.20 = 5,110.56/x
  3. Step 3: Cross multiply
    7,882.11x = 11,815.20 × 5,110.56
  4. Step 4: Simplify right side
    7,882.11x = 60,382,288.51
  5. Step 5: Solve for x
    x = 60,382,288.51/7,882.11
  6. Step 6: Final answer
    x = 7,660.68

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1.5x scale

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.