Home / 17,902.16-26,857.79-12,647.44

Finding the Fourth Proportional to 17,902.16, 26,857.79 and 12,647.44

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Solution

The fourth proportional to 17,902.16, 26,857.79 and 12,647.44 is: 18,974.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,902.16 : 26,857.79 = 12,647.44 : x
  2. Step 2: Convert to fraction form
    17,902.16/26,857.79 = 12,647.44/x
  3. Step 3: Cross multiply
    17,902.16x = 26,857.79 × 12,647.44
  4. Step 4: Simplify right side
    17,902.16x = 339,682,252.03
  5. Step 5: Solve for x
    x = 339,682,252.03/17,902.16
  6. Step 6: Final answer
    x = 18,974.37

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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.