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Finding the Fourth Proportional to 8,305.92, 12,456.72 and 2,460.96

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Solution

The fourth proportional to 8,305.92, 12,456.72 and 2,460.96 is: 3,690.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,305.92 : 12,456.72 = 2,460.96 : x
  2. Step 2: Convert to fraction form
    8,305.92/12,456.72 = 2,460.96/x
  3. Step 3: Cross multiply
    8,305.92x = 12,456.72 × 2,460.96
  4. Step 4: Simplify right side
    8,305.92x = 30,655,489.65
  5. Step 5: Solve for x
    x = 30,655,489.65/8,305.92
  6. Step 6: Final answer
    x = 3,690.80

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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.