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Finding the Fourth Proportional to 7,893.92, 11,843.04 and 3,211.04

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Solution

The fourth proportional to 7,893.92, 11,843.04 and 3,211.04 is: 4,817.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,893.92 : 11,843.04 = 3,211.04 : x
  2. Step 2: Convert to fraction form
    7,893.92/11,843.04 = 3,211.04/x
  3. Step 3: Cross multiply
    7,893.92x = 11,843.04 × 3,211.04
  4. Step 4: Simplify right side
    7,893.92x = 38,028,475.16
  5. Step 5: Solve for x
    x = 38,028,475.16/7,893.92
  6. Step 6: Final answer
    x = 4,817.44

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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.