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Finding the Fourth Proportional to 8,122.92, 11,209.62 and 4,396.92

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Solution

The fourth proportional to 8,122.92, 11,209.62 and 4,396.92 is: 6,067.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,122.92 : 11,209.62 = 4,396.92 : x
  2. Step 2: Convert to fraction form
    8,122.92/11,209.62 = 4,396.92/x
  3. Step 3: Cross multiply
    8,122.92x = 11,209.62 × 4,396.92
  4. Step 4: Simplify right side
    8,122.92x = 49,287,802.37
  5. Step 5: Solve for x
    x = 49,287,802.37/8,122.92
  6. Step 6: Final answer
    x = 6,067.74

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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.