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Finding the Fourth Proportional to 18,179.26, 27,281.45 and 11,942.26

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Solution

The fourth proportional to 18,179.26, 27,281.45 and 11,942.26 is: 17,921.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,179.26 : 27,281.45 = 11,942.26 : x
  2. Step 2: Convert to fraction form
    18,179.26/27,281.45 = 11,942.26/x
  3. Step 3: Cross multiply
    18,179.26x = 27,281.45 × 11,942.26
  4. Step 4: Simplify right side
    18,179.26x = 325,802,169.08
  5. Step 5: Solve for x
    x = 325,802,169.08/18,179.26
  6. Step 6: Final answer
    x = 17,921.64

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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.