Home / 13,629.97-20,447.84-4,395.25

Finding the Fourth Proportional to 13,629.97, 20,447.84 and 4,395.25

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Solution

The fourth proportional to 13,629.97, 20,447.84 and 4,395.25 is: 6,593.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,629.97 : 20,447.84 = 4,395.25 : x
  2. Step 2: Convert to fraction form
    13,629.97/20,447.84 = 4,395.25/x
  3. Step 3: Cross multiply
    13,629.97x = 20,447.84 × 4,395.25
  4. Step 4: Simplify right side
    13,629.97x = 89,873,368.76
  5. Step 5: Solve for x
    x = 89,873,368.76/13,629.97
  6. Step 6: Final answer
    x = 6,593.81

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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.