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Finding the Fourth Proportional to 18,353.62, 27,523.73 and 7,824.72

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Solution

The fourth proportional to 18,353.62, 27,523.73 and 7,824.72 is: 11,734.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,353.62 : 27,523.73 = 7,824.72 : x
  2. Step 2: Convert to fraction form
    18,353.62/27,523.73 = 7,824.72/x
  3. Step 3: Cross multiply
    18,353.62x = 27,523.73 × 7,824.72
  4. Step 4: Simplify right side
    18,353.62x = 215,365,480.61
  5. Step 5: Solve for x
    x = 215,365,480.61/18,353.62
  6. Step 6: Final answer
    x = 11,734.22

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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.