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Finding the Fourth Proportional to 18,013.88, 27,020.82 and 5,701.88

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Solution

The fourth proportional to 18,013.88, 27,020.82 and 5,701.88 is: 8,552.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,013.88 : 27,020.82 = 5,701.88 : x
  2. Step 2: Convert to fraction form
    18,013.88/27,020.82 = 5,701.88/x
  3. Step 3: Cross multiply
    18,013.88x = 27,020.82 × 5,701.88
  4. Step 4: Simplify right side
    18,013.88x = 154,069,338.04
  5. Step 5: Solve for x
    x = 154,069,338.04/18,013.88
  6. Step 6: Final answer
    x = 8,552.81

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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.