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Finding the Fourth Proportional to 8,099.80, 12,145.50 and 3,713.48

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Solution

The fourth proportional to 8,099.80, 12,145.50 and 3,713.48 is: 5,568.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,099.80 : 12,145.50 = 3,713.48 : x
  2. Step 2: Convert to fraction form
    8,099.80/12,145.50 = 3,713.48/x
  3. Step 3: Cross multiply
    8,099.80x = 12,145.50 × 3,713.48
  4. Step 4: Simplify right side
    8,099.80x = 45,102,071.34
  5. Step 5: Solve for x
    x = 45,102,071.34/8,099.80
  6. Step 6: Final answer
    x = 5,568.29

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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.