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Finding the Fourth Proportional to 8,480.32, 12,723.48 and 3,799.96

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Solution

The fourth proportional to 8,480.32, 12,723.48 and 3,799.96 is: 5,701.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,480.32 : 12,723.48 = 3,799.96 : x
  2. Step 2: Convert to fraction form
    8,480.32/12,723.48 = 3,799.96/x
  3. Step 3: Cross multiply
    8,480.32x = 12,723.48 × 3,799.96
  4. Step 4: Simplify right side
    8,480.32x = 48,348,715.06
  5. Step 5: Solve for x
    x = 48,348,715.06/8,480.32
  6. Step 6: Final answer
    x = 5,701.28

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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.