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Finding the Fourth Proportional to 8,320.44, 12,469.08 and 6,463.08

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Solution

The fourth proportional to 8,320.44, 12,469.08 and 6,463.08 is: 9,685.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,320.44 : 12,469.08 = 6,463.08 : x
  2. Step 2: Convert to fraction form
    8,320.44/12,469.08 = 6,463.08/x
  3. Step 3: Cross multiply
    8,320.44x = 12,469.08 × 6,463.08
  4. Step 4: Simplify right side
    8,320.44x = 80,588,661.57
  5. Step 5: Solve for x
    x = 80,588,661.57/8,320.44
  6. Step 6: Final answer
    x = 9,685.62

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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.