Home / 12,836.22-19,249.34-3,948.90

Finding the Fourth Proportional to 12,836.22, 19,249.34 and 3,948.90

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Solution

The fourth proportional to 12,836.22, 19,249.34 and 3,948.90 is: 5,921.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,836.22 : 19,249.34 = 3,948.90 : x
  2. Step 2: Convert to fraction form
    12,836.22/19,249.34 = 3,948.90/x
  3. Step 3: Cross multiply
    12,836.22x = 19,249.34 × 3,948.90
  4. Step 4: Simplify right side
    12,836.22x = 76,013,698.98
  5. Step 5: Solve for x
    x = 76,013,698.98/12,836.22
  6. Step 6: Final answer
    x = 5,921.81

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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.