Home / 8,102.16-12,149.19-3,715.88

Finding the Fourth Proportional to 8,102.16, 12,149.19 and 3,715.88

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Solution

The fourth proportional to 8,102.16, 12,149.19 and 3,715.88 is: 5,571.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,102.16 : 12,149.19 = 3,715.88 : x
  2. Step 2: Convert to fraction form
    8,102.16/12,149.19 = 3,715.88/x
  3. Step 3: Cross multiply
    8,102.16x = 12,149.19 × 3,715.88
  4. Step 4: Simplify right side
    8,102.16x = 45,144,871.39
  5. Step 5: Solve for x
    x = 45,144,871.39/8,102.16
  6. Step 6: Final answer
    x = 5,571.96

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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.