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Finding the Fourth Proportional to 18,294.42, 27,441.21 and 8,433.68

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Solution

The fourth proportional to 18,294.42, 27,441.21 and 8,433.68 is: 12,650.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,294.42 : 27,441.21 = 8,433.68 : x
  2. Step 2: Convert to fraction form
    18,294.42/27,441.21 = 8,433.68/x
  3. Step 3: Cross multiply
    18,294.42x = 27,441.21 × 8,433.68
  4. Step 4: Simplify right side
    18,294.42x = 231,430,383.95
  5. Step 5: Solve for x
    x = 231,430,383.95/18,294.42
  6. Step 6: Final answer
    x = 12,650.33

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Double scale
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Similar ratio
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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.