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Finding the Fourth Proportional to 18,229.51, 27,282.51 and 11,213.96

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Solution

The fourth proportional to 18,229.51, 27,282.51 and 11,213.96 is: 16,782.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,229.51 : 27,282.51 = 11,213.96 : x
  2. Step 2: Convert to fraction form
    18,229.51/27,282.51 = 11,213.96/x
  3. Step 3: Cross multiply
    18,229.51x = 27,282.51 × 11,213.96
  4. Step 4: Simplify right side
    18,229.51x = 305,944,975.84
  5. Step 5: Solve for x
    x = 305,944,975.84/18,229.51
  6. Step 6: Final answer
    x = 16,782.96

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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.