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Finding the Fourth Proportional to 8,433.65, 12,640.62 and 6,346.97

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Solution

The fourth proportional to 8,433.65, 12,640.62 and 6,346.97 is: 9,513.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,433.65 : 12,640.62 = 6,346.97 : x
  2. Step 2: Convert to fraction form
    8,433.65/12,640.62 = 6,346.97/x
  3. Step 3: Cross multiply
    8,433.65x = 12,640.62 × 6,346.97
  4. Step 4: Simplify right side
    8,433.65x = 80,229,635.92
  5. Step 5: Solve for x
    x = 80,229,635.92/8,433.65
  6. Step 6: Final answer
    x = 9,513.04

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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.