Home / 13,634.43-20,449.36-3,774.70

Finding the Fourth Proportional to 13,634.43, 20,449.36 and 3,774.70

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Solution

The fourth proportional to 13,634.43, 20,449.36 and 3,774.70 is: 5,661.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.43 : 20,449.36 = 3,774.70 : x
  2. Step 2: Convert to fraction form
    13,634.43/20,449.36 = 3,774.70/x
  3. Step 3: Cross multiply
    13,634.43x = 20,449.36 × 3,774.70
  4. Step 4: Simplify right side
    13,634.43x = 77,190,229.47
  5. Step 5: Solve for x
    x = 77,190,229.47/13,634.43
  6. Step 6: Final answer
    x = 5,661.42

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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.