Home / 8,186.72-12,270.89-3,255.03

Finding the Fourth Proportional to 8,186.72, 12,270.89 and 3,255.03

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Solution

The fourth proportional to 8,186.72, 12,270.89 and 3,255.03 is: 4,878.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.72 : 12,270.89 = 3,255.03 : x
  2. Step 2: Convert to fraction form
    8,186.72/12,270.89 = 3,255.03/x
  3. Step 3: Cross multiply
    8,186.72x = 12,270.89 × 3,255.03
  4. Step 4: Simplify right side
    8,186.72x = 39,942,123.21
  5. Step 5: Solve for x
    x = 39,942,123.21/8,186.72
  6. Step 6: Final answer
    x = 4,878.90

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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.