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Finding the Fourth Proportional to 18,141.27, 27,214.07 and 11,118.03

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Solution

The fourth proportional to 18,141.27, 27,214.07 and 11,118.03 is: 16,678.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,141.27 : 27,214.07 = 11,118.03 : x
  2. Step 2: Convert to fraction form
    18,141.27/27,214.07 = 11,118.03/x
  3. Step 3: Cross multiply
    18,141.27x = 27,214.07 × 11,118.03
  4. Step 4: Simplify right side
    18,141.27x = 302,566,791.09
  5. Step 5: Solve for x
    x = 302,566,791.09/18,141.27
  6. Step 6: Final answer
    x = 16,678.37

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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.