Home / 12,308.85-18,454.46-5,731.44

Finding the Fourth Proportional to 12,308.85, 18,454.46 and 5,731.44

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Solution

The fourth proportional to 12,308.85, 18,454.46 and 5,731.44 is: 8,593.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,308.85 : 18,454.46 = 5,731.44 : x
  2. Step 2: Convert to fraction form
    12,308.85/18,454.46 = 5,731.44/x
  3. Step 3: Cross multiply
    12,308.85x = 18,454.46 × 5,731.44
  4. Step 4: Simplify right side
    12,308.85x = 105,770,601.57
  5. Step 5: Solve for x
    x = 105,770,601.57/12,308.85
  6. Step 6: Final answer
    x = 8,593.05

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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.