Home / 12,546.55-18,821.87-5,149.02

Finding the Fourth Proportional to 12,546.55, 18,821.87 and 5,149.02

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Solution

The fourth proportional to 12,546.55, 18,821.87 and 5,149.02 is: 7,724.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,546.55 : 18,821.87 = 5,149.02 : x
  2. Step 2: Convert to fraction form
    12,546.55/18,821.87 = 5,149.02/x
  3. Step 3: Cross multiply
    12,546.55x = 18,821.87 × 5,149.02
  4. Step 4: Simplify right side
    12,546.55x = 96,914,143.34
  5. Step 5: Solve for x
    x = 96,914,143.34/12,546.55
  6. Step 6: Final answer
    x = 7,724.37

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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.