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Finding the Fourth Proportional to 8,450.92, 12,676.40 and 3,769.72

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Solution

The fourth proportional to 8,450.92, 12,676.40 and 3,769.72 is: 5,654.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,450.92 : 12,676.40 = 3,769.72 : x
  2. Step 2: Convert to fraction form
    8,450.92/12,676.40 = 3,769.72/x
  3. Step 3: Cross multiply
    8,450.92x = 12,676.40 × 3,769.72
  4. Step 4: Simplify right side
    8,450.92x = 47,786,478.61
  5. Step 5: Solve for x
    x = 47,786,478.61/8,450.92
  6. Step 6: Final answer
    x = 5,654.59

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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.