Home / 13,859.16-20,786.24-3,996.02

Finding the Fourth Proportional to 13,859.16, 20,786.24 and 3,996.02

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Solution

The fourth proportional to 13,859.16, 20,786.24 and 3,996.02 is: 5,993.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,859.16 : 20,786.24 = 3,996.02 : x
  2. Step 2: Convert to fraction form
    13,859.16/20,786.24 = 3,996.02/x
  3. Step 3: Cross multiply
    13,859.16x = 20,786.24 × 3,996.02
  4. Step 4: Simplify right side
    13,859.16x = 83,062,106.85
  5. Step 5: Solve for x
    x = 83,062,106.85/13,859.16
  6. Step 6: Final answer
    x = 5,993.30

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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.