Home / 12,162.46-18,246.12-3,843.25

Finding the Fourth Proportional to 12,162.46, 18,246.12 and 3,843.25

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Solution

The fourth proportional to 12,162.46, 18,246.12 and 3,843.25 is: 5,765.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,162.46 : 18,246.12 = 3,843.25 : x
  2. Step 2: Convert to fraction form
    12,162.46/18,246.12 = 3,843.25/x
  3. Step 3: Cross multiply
    12,162.46x = 18,246.12 × 3,843.25
  4. Step 4: Simplify right side
    12,162.46x = 70,124,400.69
  5. Step 5: Solve for x
    x = 70,124,400.69/12,162.46
  6. Step 6: Final answer
    x = 5,765.64

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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.