Home / 13,738.80-20,608.08-3,878.04

Finding the Fourth Proportional to 13,738.80, 20,608.08 and 3,878.04

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Solution

The fourth proportional to 13,738.80, 20,608.08 and 3,878.04 is: 5,817.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.80 : 20,608.08 = 3,878.04 : x
  2. Step 2: Convert to fraction form
    13,738.80/20,608.08 = 3,878.04/x
  3. Step 3: Cross multiply
    13,738.80x = 20,608.08 × 3,878.04
  4. Step 4: Simplify right side
    13,738.80x = 79,918,958.56
  5. Step 5: Solve for x
    x = 79,918,958.56/13,738.80
  6. Step 6: Final answer
    x = 5,817.03

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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.