Home / 12,286.68-18,431.22-12,096.12

Finding the Fourth Proportional to 12,286.68, 18,431.22 and 12,096.12

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Solution

The fourth proportional to 12,286.68, 18,431.22 and 12,096.12 is: 18,145.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,286.68 : 18,431.22 = 12,096.12 : x
  2. Step 2: Convert to fraction form
    12,286.68/18,431.22 = 12,096.12/x
  3. Step 3: Cross multiply
    12,286.68x = 18,431.22 × 12,096.12
  4. Step 4: Simplify right side
    12,286.68x = 222,946,248.87
  5. Step 5: Solve for x
    x = 222,946,248.87/12,286.68
  6. Step 6: Final answer
    x = 18,145.36

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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.