Home / 12,256.68-18,387.41-3,936.06

Finding the Fourth Proportional to 12,256.68, 18,387.41 and 3,936.06

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Solution

The fourth proportional to 12,256.68, 18,387.41 and 3,936.06 is: 5,904.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,256.68 : 18,387.41 = 3,936.06 : x
  2. Step 2: Convert to fraction form
    12,256.68/18,387.41 = 3,936.06/x
  3. Step 3: Cross multiply
    12,256.68x = 18,387.41 × 3,936.06
  4. Step 4: Simplify right side
    12,256.68x = 72,373,929.32
  5. Step 5: Solve for x
    x = 72,373,929.32/12,256.68
  6. Step 6: Final answer
    x = 5,904.86

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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.