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Finding the Fourth Proportional to 8,097.80, 12,149.40 and 7,226.80

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Solution

The fourth proportional to 8,097.80, 12,149.40 and 7,226.80 is: 10,842.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,097.80 : 12,149.40 = 7,226.80 : x
  2. Step 2: Convert to fraction form
    8,097.80/12,149.40 = 7,226.80/x
  3. Step 3: Cross multiply
    8,097.80x = 12,149.40 × 7,226.80
  4. Step 4: Simplify right side
    8,097.80x = 87,801,283.92
  5. Step 5: Solve for x
    x = 87,801,283.92/8,097.80
  6. Step 6: Final answer
    x = 10,842.61

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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.