Home / 12,246.21-18,360.27-3,921.41

Finding the Fourth Proportional to 12,246.21, 18,360.27 and 3,921.41

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Solution

The fourth proportional to 12,246.21, 18,360.27 and 3,921.41 is: 5,879.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,246.21 : 18,360.27 = 3,921.41 : x
  2. Step 2: Convert to fraction form
    12,246.21/18,360.27 = 3,921.41/x
  3. Step 3: Cross multiply
    12,246.21x = 18,360.27 × 3,921.41
  4. Step 4: Simplify right side
    12,246.21x = 71,998,146.38
  5. Step 5: Solve for x
    x = 71,998,146.38/12,246.21
  6. Step 6: Final answer
    x = 5,879.22

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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.