Home / 12,149.88-18,217.62-4,248.60

Finding the Fourth Proportional to 12,149.88, 18,217.62 and 4,248.60

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Solution

The fourth proportional to 12,149.88, 18,217.62 and 4,248.60 is: 6,370.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,149.88 : 18,217.62 = 4,248.60 : x
  2. Step 2: Convert to fraction form
    12,149.88/18,217.62 = 4,248.60/x
  3. Step 3: Cross multiply
    12,149.88x = 18,217.62 × 4,248.60
  4. Step 4: Simplify right side
    12,149.88x = 77,399,380.33
  5. Step 5: Solve for x
    x = 77,399,380.33/12,149.88
  6. Step 6: Final answer
    x = 6,370.38

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1.5x scale

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.