Home / 13,634.21-20,451.76-3,772.66

Finding the Fourth Proportional to 13,634.21, 20,451.76 and 3,772.66

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Solution

The fourth proportional to 13,634.21, 20,451.76 and 3,772.66 is: 5,659.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.21 : 20,451.76 = 3,772.66 : x
  2. Step 2: Convert to fraction form
    13,634.21/20,451.76 = 3,772.66/x
  3. Step 3: Cross multiply
    13,634.21x = 20,451.76 × 3,772.66
  4. Step 4: Simplify right side
    13,634.21x = 77,157,536.88
  5. Step 5: Solve for x
    x = 77,157,536.88/13,634.21
  6. Step 6: Final answer
    x = 5,659.11

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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.