Home / 7,882.26-11,815.40-5,110.68

Finding the Fourth Proportional to 7,882.26, 11,815.40 and 5,110.68

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Solution

The fourth proportional to 7,882.26, 11,815.40 and 5,110.68 is: 7,660.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,882.26 : 11,815.40 = 5,110.68 : x
  2. Step 2: Convert to fraction form
    7,882.26/11,815.40 = 5,110.68/x
  3. Step 3: Cross multiply
    7,882.26x = 11,815.40 × 5,110.68
  4. Step 4: Simplify right side
    7,882.26x = 60,384,728.47
  5. Step 5: Solve for x
    x = 60,384,728.47/7,882.26
  6. Step 6: Final answer
    x = 7,660.84

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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.