Home / 13,686.26-20,529.43-3,825.48

Finding the Fourth Proportional to 13,686.26, 20,529.43 and 3,825.48

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Solution

The fourth proportional to 13,686.26, 20,529.43 and 3,825.48 is: 5,738.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,686.26 : 20,529.43 = 3,825.48 : x
  2. Step 2: Convert to fraction form
    13,686.26/20,529.43 = 3,825.48/x
  3. Step 3: Cross multiply
    13,686.26x = 20,529.43 × 3,825.48
  4. Step 4: Simplify right side
    13,686.26x = 78,534,923.88
  5. Step 5: Solve for x
    x = 78,534,923.88/13,686.26
  6. Step 6: Final answer
    x = 5,738.23

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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.