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Finding the Fourth Proportional to 8,451.73, 12,674.94 and 3,520.09

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Solution

The fourth proportional to 8,451.73, 12,674.94 and 3,520.09 is: 5,279.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,451.73 : 12,674.94 = 3,520.09 : x
  2. Step 2: Convert to fraction form
    8,451.73/12,674.94 = 3,520.09/x
  3. Step 3: Cross multiply
    8,451.73x = 12,674.94 × 3,520.09
  4. Step 4: Simplify right side
    8,451.73x = 44,616,929.54
  5. Step 5: Solve for x
    x = 44,616,929.54/8,451.73
  6. Step 6: Final answer
    x = 5,279.03

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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.