Home / 8,747.85-13,121.72-2,174.03

Finding the Fourth Proportional to 8,747.85, 13,121.72 and 2,174.03

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Solution

The fourth proportional to 8,747.85, 13,121.72 and 2,174.03 is: 3,261.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,747.85 : 13,121.72 = 2,174.03 : x
  2. Step 2: Convert to fraction form
    8,747.85/13,121.72 = 2,174.03/x
  3. Step 3: Cross multiply
    8,747.85x = 13,121.72 × 2,174.03
  4. Step 4: Simplify right side
    8,747.85x = 28,526,936.45
  5. Step 5: Solve for x
    x = 28,526,936.45/8,747.85
  6. Step 6: Final answer
    x = 3,261.02

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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.