Home / 8,122.61-11,209.19-4,396.61

Finding the Fourth Proportional to 8,122.61, 11,209.19 and 4,396.61

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Solution

The fourth proportional to 8,122.61, 11,209.19 and 4,396.61 is: 6,067.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.61 : 11,209.19 = 4,396.61 : x
  2. Step 2: Convert to fraction form
    8,122.61/11,209.19 = 4,396.61/x
  3. Step 3: Cross multiply
    8,122.61x = 11,209.19 × 4,396.61
  4. Step 4: Simplify right side
    8,122.61x = 49,282,358.82
  5. Step 5: Solve for x
    x = 49,282,358.82/8,122.61
  6. Step 6: Final answer
    x = 6,067.31

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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.