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Finding the Fourth Proportional to 8,312.76, 12,469.68 and 2,468.88

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Solution

The fourth proportional to 8,312.76, 12,469.68 and 2,468.88 is: 3,703.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,312.76 : 12,469.68 = 2,468.88 : x
  2. Step 2: Convert to fraction form
    8,312.76/12,469.68 = 2,468.88/x
  3. Step 3: Cross multiply
    8,312.76x = 12,469.68 × 2,468.88
  4. Step 4: Simplify right side
    8,312.76x = 30,786,143.56
  5. Step 5: Solve for x
    x = 30,786,143.56/8,312.76
  6. Step 6: Final answer
    x = 3,703.48

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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.