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Finding the Fourth Proportional to 8,446.72, 12,660.64 and 3,514.72

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Solution

The fourth proportional to 8,446.72, 12,660.64 and 3,514.72 is: 5,268.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,446.72 : 12,660.64 = 3,514.72 : x
  2. Step 2: Convert to fraction form
    8,446.72/12,660.64 = 3,514.72/x
  3. Step 3: Cross multiply
    8,446.72x = 12,660.64 × 3,514.72
  4. Step 4: Simplify right side
    8,446.72x = 44,498,604.62
  5. Step 5: Solve for x
    x = 44,498,604.62/8,446.72
  6. Step 6: Final answer
    x = 5,268.15

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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.