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Finding the Fourth Proportional to 18,212, 27,318 and 5,900

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Solution

The fourth proportional to 18,212, 27,318 and 5,900 is: 8,850

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,212 : 27,318 = 5,900 : x
  2. Step 2: Convert to fraction form
    18,212/27,318 = 5,900/x
  3. Step 3: Cross multiply
    18,212x = 27,318 × 5,900
  4. Step 4: Simplify right side
    18,212x = 161,176,200
  5. Step 5: Solve for x
    x = 161,176,200/18,212
  6. Step 6: Final answer
    x = 8,850

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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.