Home / 12,272.21-18,410.84-3,949.73

Finding the Fourth Proportional to 12,272.21, 18,410.84 and 3,949.73

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Solution

The fourth proportional to 12,272.21, 18,410.84 and 3,949.73 is: 5,925.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.21 : 18,410.84 = 3,949.73 : x
  2. Step 2: Convert to fraction form
    12,272.21/18,410.84 = 3,949.73/x
  3. Step 3: Cross multiply
    12,272.21x = 18,410.84 × 3,949.73
  4. Step 4: Simplify right side
    12,272.21x = 72,717,847.07
  5. Step 5: Solve for x
    x = 72,717,847.07/12,272.21
  6. Step 6: Final answer
    x = 5,925.41

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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.