Home / 8,179.92-11,291.66-5,530.89

Finding the Fourth Proportional to 8,179.92, 11,291.66 and 5,530.89

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Solution

The fourth proportional to 8,179.92, 11,291.66 and 5,530.89 is: 7,634.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,179.92 : 11,291.66 = 5,530.89 : x
  2. Step 2: Convert to fraction form
    8,179.92/11,291.66 = 5,530.89/x
  3. Step 3: Cross multiply
    8,179.92x = 11,291.66 × 5,530.89
  4. Step 4: Simplify right side
    8,179.92x = 62,452,901.72
  5. Step 5: Solve for x
    x = 62,452,901.72/8,179.92
  6. Step 6: Final answer
    x = 7,634.90

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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.