Home / 13,634.12-20,451.34-3,773.49

Finding the Fourth Proportional to 13,634.12, 20,451.34 and 3,773.49

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Solution

The fourth proportional to 13,634.12, 20,451.34 and 3,773.49 is: 5,660.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.12 : 20,451.34 = 3,773.49 : x
  2. Step 2: Convert to fraction form
    13,634.12/20,451.34 = 3,773.49/x
  3. Step 3: Cross multiply
    13,634.12x = 20,451.34 × 3,773.49
  4. Step 4: Simplify right side
    13,634.12x = 77,172,833.78
  5. Step 5: Solve for x
    x = 77,172,833.78/13,634.12
  6. Step 6: Final answer
    x = 5,660.27

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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.