Home / 13,912.94-20,832.42-9,220.88

Finding the Fourth Proportional to 13,912.94, 20,832.42 and 9,220.88

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Solution

The fourth proportional to 13,912.94, 20,832.42 and 9,220.88 is: 13,806.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,912.94 : 20,832.42 = 9,220.88 : x
  2. Step 2: Convert to fraction form
    13,912.94/20,832.42 = 9,220.88/x
  3. Step 3: Cross multiply
    13,912.94x = 20,832.42 × 9,220.88
  4. Step 4: Simplify right side
    13,912.94x = 192,093,244.93
  5. Step 5: Solve for x
    x = 192,093,244.93/13,912.94
  6. Step 6: Final answer
    x = 13,806.80

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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.