Home / 12,633.12-18,949.92-3,398.88

Finding the Fourth Proportional to 12,633.12, 18,949.92 and 3,398.88

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Solution

The fourth proportional to 12,633.12, 18,949.92 and 3,398.88 is: 5,098.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,633.12 : 18,949.92 = 3,398.88 : x
  2. Step 2: Convert to fraction form
    12,633.12/18,949.92 = 3,398.88/x
  3. Step 3: Cross multiply
    12,633.12x = 18,949.92 × 3,398.88
  4. Step 4: Simplify right side
    12,633.12x = 64,408,504.09
  5. Step 5: Solve for x
    x = 64,408,504.09/12,633.12
  6. Step 6: Final answer
    x = 5,098.38

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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.