Home / 13,634.28-20,451.42-3,773.55

Finding the Fourth Proportional to 13,634.28, 20,451.42 and 3,773.55

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Solution

The fourth proportional to 13,634.28, 20,451.42 and 3,773.55 is: 5,660.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.28 : 20,451.42 = 3,773.55 : x
  2. Step 2: Convert to fraction form
    13,634.28/20,451.42 = 3,773.55/x
  3. Step 3: Cross multiply
    13,634.28x = 20,451.42 × 3,773.55
  4. Step 4: Simplify right side
    13,634.28x = 77,174,532.63
  5. Step 5: Solve for x
    x = 77,174,532.63/13,634.28
  6. Step 6: Final answer
    x = 5,660.33

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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.