Home / 13,757.25-20,636.28-3,369

Finding the Fourth Proportional to 13,757.25, 20,636.28 and 3,369

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Solution

The fourth proportional to 13,757.25, 20,636.28 and 3,369 is: 5,053.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.25 : 20,636.28 = 3,369 : x
  2. Step 2: Convert to fraction form
    13,757.25/20,636.28 = 3,369/x
  3. Step 3: Cross multiply
    13,757.25x = 20,636.28 × 3,369
  4. Step 4: Simplify right side
    13,757.25x = 69,523,627.32
  5. Step 5: Solve for x
    x = 69,523,627.32/13,757.25
  6. Step 6: Final answer
    x = 5,053.60

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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.