Home / 13,728.24-20,593.74-3,867.60

Finding the Fourth Proportional to 13,728.24, 20,593.74 and 3,867.60

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Solution

The fourth proportional to 13,728.24, 20,593.74 and 3,867.60 is: 5,801.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.24 : 20,593.74 = 3,867.60 : x
  2. Step 2: Convert to fraction form
    13,728.24/20,593.74 = 3,867.60/x
  3. Step 3: Cross multiply
    13,728.24x = 20,593.74 × 3,867.60
  4. Step 4: Simplify right side
    13,728.24x = 79,648,348.82
  5. Step 5: Solve for x
    x = 79,648,348.82/13,728.24
  6. Step 6: Final answer
    x = 5,801.79

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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.