Home / 13,757.85-20,636.82-3,369.60

Finding the Fourth Proportional to 13,757.85, 20,636.82 and 3,369.60

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Solution

The fourth proportional to 13,757.85, 20,636.82 and 3,369.60 is: 5,054.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.85 : 20,636.82 = 3,369.60 : x
  2. Step 2: Convert to fraction form
    13,757.85/20,636.82 = 3,369.60/x
  3. Step 3: Cross multiply
    13,757.85x = 20,636.82 × 3,369.60
  4. Step 4: Simplify right side
    13,757.85x = 69,537,708.64
  5. Step 5: Solve for x
    x = 69,537,708.64/13,757.85
  6. Step 6: Final answer
    x = 5,054.40

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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.