Home / 13,589.80-20,383.79-3,728.25

Finding the Fourth Proportional to 13,589.80, 20,383.79 and 3,728.25

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Solution

The fourth proportional to 13,589.80, 20,383.79 and 3,728.25 is: 5,592.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,589.80 : 20,383.79 = 3,728.25 : x
  2. Step 2: Convert to fraction form
    13,589.80/20,383.79 = 3,728.25/x
  3. Step 3: Cross multiply
    13,589.80x = 20,383.79 × 3,728.25
  4. Step 4: Simplify right side
    13,589.80x = 75,995,846.43
  5. Step 5: Solve for x
    x = 75,995,846.43/13,589.80
  6. Step 6: Final answer
    x = 5,592.13

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1.5x scale

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.