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Finding the Fourth Proportional to 8,294.70, 12,440.16 and 2,449.92

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Solution

The fourth proportional to 8,294.70, 12,440.16 and 2,449.92 is: 3,674.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,294.70 : 12,440.16 = 2,449.92 : x
  2. Step 2: Convert to fraction form
    8,294.70/12,440.16 = 2,449.92/x
  3. Step 3: Cross multiply
    8,294.70x = 12,440.16 × 2,449.92
  4. Step 4: Simplify right side
    8,294.70x = 30,477,396.79
  5. Step 5: Solve for x
    x = 30,477,396.79/8,294.70
  6. Step 6: Final answer
    x = 3,674.32

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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.