Home / 13,634.28-20,449.44-3,774.24

Finding the Fourth Proportional to 13,634.28, 20,449.44 and 3,774.24

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Solution

The fourth proportional to 13,634.28, 20,449.44 and 3,774.24 is: 5,660.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.28 : 20,449.44 = 3,774.24 : x
  2. Step 2: Convert to fraction form
    13,634.28/20,449.44 = 3,774.24/x
  3. Step 3: Cross multiply
    13,634.28x = 20,449.44 × 3,774.24
  4. Step 4: Simplify right side
    13,634.28x = 77,181,094.43
  5. Step 5: Solve for x
    x = 77,181,094.43/13,634.28
  6. Step 6: Final answer
    x = 5,660.81

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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.