Home / 12,121.56-18,180.26-3,237.02

Finding the Fourth Proportional to 12,121.56, 18,180.26 and 3,237.02

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Solution

The fourth proportional to 12,121.56, 18,180.26 and 3,237.02 is: 4,854.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,121.56 : 18,180.26 = 3,237.02 : x
  2. Step 2: Convert to fraction form
    12,121.56/18,180.26 = 3,237.02/x
  3. Step 3: Cross multiply
    12,121.56x = 18,180.26 × 3,237.02
  4. Step 4: Simplify right side
    12,121.56x = 58,849,865.23
  5. Step 5: Solve for x
    x = 58,849,865.23/12,121.56
  6. Step 6: Final answer
    x = 4,854.97

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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.