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Finding the Fourth Proportional to 18,017.97, 27,016.68 and 6,917.73

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Solution

The fourth proportional to 18,017.97, 27,016.68 and 6,917.73 is: 10,372.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,017.97 : 27,016.68 = 6,917.73 : x
  2. Step 2: Convert to fraction form
    18,017.97/27,016.68 = 6,917.73/x
  3. Step 3: Cross multiply
    18,017.97x = 27,016.68 × 6,917.73
  4. Step 4: Simplify right side
    18,017.97x = 186,894,097.74
  5. Step 5: Solve for x
    x = 186,894,097.74/18,017.97
  6. Step 6: Final answer
    x = 10,372.65

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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.