Home / 12,272.88-18,408.94-3,507.80

Finding the Fourth Proportional to 12,272.88, 18,408.94 and 3,507.80

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Solution

The fourth proportional to 12,272.88, 18,408.94 and 3,507.80 is: 5,261.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.88 : 18,408.94 = 3,507.80 : x
  2. Step 2: Convert to fraction form
    12,272.88/18,408.94 = 3,507.80/x
  3. Step 3: Cross multiply
    12,272.88x = 18,408.94 × 3,507.80
  4. Step 4: Simplify right side
    12,272.88x = 64,574,879.73
  5. Step 5: Solve for x
    x = 64,574,879.73/12,272.88
  6. Step 6: Final answer
    x = 5,261.59

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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.