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Finding the Fourth Proportional to 8,245.28, 12,369.68 and 4,736.88

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Solution

The fourth proportional to 8,245.28, 12,369.68 and 4,736.88 is: 7,106.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,245.28 : 12,369.68 = 4,736.88 : x
  2. Step 2: Convert to fraction form
    8,245.28/12,369.68 = 4,736.88/x
  3. Step 3: Cross multiply
    8,245.28x = 12,369.68 × 4,736.88
  4. Step 4: Simplify right side
    8,245.28x = 58,593,689.80
  5. Step 5: Solve for x
    x = 58,593,689.80/8,245.28
  6. Step 6: Final answer
    x = 7,106.33

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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.