Home / 12,239.12-18,361.71-3,474.11

Finding the Fourth Proportional to 12,239.12, 18,361.71 and 3,474.11

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Solution

The fourth proportional to 12,239.12, 18,361.71 and 3,474.11 is: 5,212.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,239.12 : 18,361.71 = 3,474.11 : x
  2. Step 2: Convert to fraction form
    12,239.12/18,361.71 = 3,474.11/x
  3. Step 3: Cross multiply
    12,239.12x = 18,361.71 × 3,474.11
  4. Step 4: Simplify right side
    12,239.12x = 63,790,508.52
  5. Step 5: Solve for x
    x = 63,790,508.52/12,239.12
  6. Step 6: Final answer
    x = 5,212.02

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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.