Home / 13,786.24-19,029.33-7,821.87

Finding the Fourth Proportional to 13,786.24, 19,029.33 and 7,821.87

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Solution

The fourth proportional to 13,786.24, 19,029.33 and 7,821.87 is: 10,796.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,786.24 : 19,029.33 = 7,821.87 : x
  2. Step 2: Convert to fraction form
    13,786.24/19,029.33 = 7,821.87/x
  3. Step 3: Cross multiply
    13,786.24x = 19,029.33 × 7,821.87
  4. Step 4: Simplify right side
    13,786.24x = 148,844,850.30
  5. Step 5: Solve for x
    x = 148,844,850.30/13,786.24
  6. Step 6: Final answer
    x = 10,796.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.