Home / 8,104.05-11,180.52-5,118.75

Finding the Fourth Proportional to 8,104.05, 11,180.52 and 5,118.75

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Solution

The fourth proportional to 8,104.05, 11,180.52 and 5,118.75 is: 7,061.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.05 : 11,180.52 = 5,118.75 : x
  2. Step 2: Convert to fraction form
    8,104.05/11,180.52 = 5,118.75/x
  3. Step 3: Cross multiply
    8,104.05x = 11,180.52 × 5,118.75
  4. Step 4: Simplify right side
    8,104.05x = 57,230,286.75
  5. Step 5: Solve for x
    x = 57,230,286.75/8,104.05
  6. Step 6: Final answer
    x = 7,061.94

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Half scale
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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.