Home / 11,972.21-17,952.84-4,179.20

Finding the Fourth Proportional to 11,972.21, 17,952.84 and 4,179.20

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Solution

The fourth proportional to 11,972.21, 17,952.84 and 4,179.20 is: 6,266.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,972.21 : 17,952.84 = 4,179.20 : x
  2. Step 2: Convert to fraction form
    11,972.21/17,952.84 = 4,179.20/x
  3. Step 3: Cross multiply
    11,972.21x = 17,952.84 × 4,179.20
  4. Step 4: Simplify right side
    11,972.21x = 75,028,419.16
  5. Step 5: Solve for x
    x = 75,028,419.16/11,972.21
  6. Step 6: Final answer
    x = 6,266.88

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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.