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Finding the Fourth Proportional to 8,392.63, 12,577.61 and 3,195.67

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Solution

The fourth proportional to 8,392.63, 12,577.61 and 3,195.67 is: 4,789.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,392.63 : 12,577.61 = 3,195.67 : x
  2. Step 2: Convert to fraction form
    8,392.63/12,577.61 = 3,195.67/x
  3. Step 3: Cross multiply
    8,392.63x = 12,577.61 × 3,195.67
  4. Step 4: Simplify right side
    8,392.63x = 40,193,912.97
  5. Step 5: Solve for x
    x = 40,193,912.97/8,392.63
  6. Step 6: Final answer
    x = 4,789.19

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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.