Home / 12,272.75-18,408.67-3,507.64

Finding the Fourth Proportional to 12,272.75, 18,408.67 and 3,507.64

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Solution

The fourth proportional to 12,272.75, 18,408.67 and 3,507.64 is: 5,261.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,272.75 : 18,408.67 = 3,507.64 : x
  2. Step 2: Convert to fraction form
    12,272.75/18,408.67 = 3,507.64/x
  3. Step 3: Cross multiply
    12,272.75x = 18,408.67 × 3,507.64
  4. Step 4: Simplify right side
    12,272.75x = 64,570,932.45
  5. Step 5: Solve for x
    x = 64,570,932.45/12,272.75
  6. Step 6: Final answer
    x = 5,261.33

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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.