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Finding the Fourth Proportional to 12,164.85, 18,245.21 and 3,397.73

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Solution

The fourth proportional to 12,164.85, 18,245.21 and 3,397.73 is: 5,096.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,164.85 : 18,245.21 = 3,397.73 : x
  2. Step 2: Convert to fraction form
    12,164.85/18,245.21 = 3,397.73/x
  3. Step 3: Cross multiply
    12,164.85x = 18,245.21 × 3,397.73
  4. Step 4: Simplify right side
    12,164.85x = 61,992,189.16
  5. Step 5: Solve for x
    x = 61,992,189.16/12,164.85
  6. Step 6: Final answer
    x = 5,096.01

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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.