Home / 13,297.82-19,946.49-3,937.79

Finding the Fourth Proportional to 13,297.82, 19,946.49 and 3,937.79

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Solution

The fourth proportional to 13,297.82, 19,946.49 and 3,937.79 is: 5,906.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.82 : 19,946.49 = 3,937.79 : x
  2. Step 2: Convert to fraction form
    13,297.82/19,946.49 = 3,937.79/x
  3. Step 3: Cross multiply
    13,297.82x = 19,946.49 × 3,937.79
  4. Step 4: Simplify right side
    13,297.82x = 78,544,989.12
  5. Step 5: Solve for x
    x = 78,544,989.12/13,297.82
  6. Step 6: Final answer
    x = 5,906.61

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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.