Home / 13,728.06-20,593.38-3,867.60

Finding the Fourth Proportional to 13,728.06, 20,593.38 and 3,867.60

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Solution

The fourth proportional to 13,728.06, 20,593.38 and 3,867.60 is: 5,801.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.06 : 20,593.38 = 3,867.60 : x
  2. Step 2: Convert to fraction form
    13,728.06/20,593.38 = 3,867.60/x
  3. Step 3: Cross multiply
    13,728.06x = 20,593.38 × 3,867.60
  4. Step 4: Simplify right side
    13,728.06x = 79,646,956.49
  5. Step 5: Solve for x
    x = 79,646,956.49/13,728.06
  6. Step 6: Final answer
    x = 5,801.76

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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.