Home / 12,174.20-18,266.70-4,388.60

Finding the Fourth Proportional to 12,174.20, 18,266.70 and 4,388.60

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Solution

The fourth proportional to 12,174.20, 18,266.70 and 4,388.60 is: 6,584.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,174.20 : 18,266.70 = 4,388.60 : x
  2. Step 2: Convert to fraction form
    12,174.20/18,266.70 = 4,388.60/x
  3. Step 3: Cross multiply
    12,174.20x = 18,266.70 × 4,388.60
  4. Step 4: Simplify right side
    12,174.20x = 80,165,239.62
  5. Step 5: Solve for x
    x = 80,165,239.62/12,174.20
  6. Step 6: Final answer
    x = 6,584.85

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1.5x scale

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.