Home / 8,311.90-11,474.24-7,173.04

Finding the Fourth Proportional to 8,311.90, 11,474.24 and 7,173.04

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Solution

The fourth proportional to 8,311.90, 11,474.24 and 7,173.04 is: 9,902.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,311.90 : 11,474.24 = 7,173.04 : x
  2. Step 2: Convert to fraction form
    8,311.90/11,474.24 = 7,173.04/x
  3. Step 3: Cross multiply
    8,311.90x = 11,474.24 × 7,173.04
  4. Step 4: Simplify right side
    8,311.90x = 82,305,182.49
  5. Step 5: Solve for x
    x = 82,305,182.49/8,311.90
  6. Step 6: Final answer
    x = 9,902.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.