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Finding the Fourth Proportional to 8,340.35, 12,512.23 and 2,793.74

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Solution

The fourth proportional to 8,340.35, 12,512.23 and 2,793.74 is: 4,191.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,340.35 : 12,512.23 = 2,793.74 : x
  2. Step 2: Convert to fraction form
    8,340.35/12,512.23 = 2,793.74/x
  3. Step 3: Cross multiply
    8,340.35x = 12,512.23 × 2,793.74
  4. Step 4: Simplify right side
    8,340.35x = 34,955,847.89
  5. Step 5: Solve for x
    x = 34,955,847.89/8,340.35
  6. Step 6: Final answer
    x = 4,191.18

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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.