Home / 13,738.48-20,608.59-3,878.53

Finding the Fourth Proportional to 13,738.48, 20,608.59 and 3,878.53

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Solution

The fourth proportional to 13,738.48, 20,608.59 and 3,878.53 is: 5,818.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,738.48 : 20,608.59 = 3,878.53 : x
  2. Step 2: Convert to fraction form
    13,738.48/20,608.59 = 3,878.53/x
  3. Step 3: Cross multiply
    13,738.48x = 20,608.59 × 3,878.53
  4. Step 4: Simplify right side
    13,738.48x = 79,930,983.05
  5. Step 5: Solve for x
    x = 79,930,983.05/13,738.48
  6. Step 6: Final answer
    x = 5,818.04

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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.