Home / 13,728.76-20,593.86-4,369.80

Finding the Fourth Proportional to 13,728.76, 20,593.86 and 4,369.80

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Solution

The fourth proportional to 13,728.76, 20,593.86 and 4,369.80 is: 6,554.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,728.76 : 20,593.86 = 4,369.80 : x
  2. Step 2: Convert to fraction form
    13,728.76/20,593.86 = 4,369.80/x
  3. Step 3: Cross multiply
    13,728.76x = 20,593.86 × 4,369.80
  4. Step 4: Simplify right side
    13,728.76x = 89,991,049.43
  5. Step 5: Solve for x
    x = 89,991,049.43/13,728.76
  6. Step 6: Final answer
    x = 6,554.93

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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.