Home / 12,087.70-18,131.67-3,654.27

Finding the Fourth Proportional to 12,087.70, 18,131.67 and 3,654.27

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Solution

The fourth proportional to 12,087.70, 18,131.67 and 3,654.27 is: 5,481.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,087.70 : 18,131.67 = 3,654.27 : x
  2. Step 2: Convert to fraction form
    12,087.70/18,131.67 = 3,654.27/x
  3. Step 3: Cross multiply
    12,087.70x = 18,131.67 × 3,654.27
  4. Step 4: Simplify right side
    12,087.70x = 66,258,013.16
  5. Step 5: Solve for x
    x = 66,258,013.16/12,087.70
  6. Step 6: Final answer
    x = 5,481.44

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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.