Home / 12,189.62-18,284.43-4,398.44

Finding the Fourth Proportional to 12,189.62, 18,284.43 and 4,398.44

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Solution

The fourth proportional to 12,189.62, 18,284.43 and 4,398.44 is: 6,597.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,189.62 : 18,284.43 = 4,398.44 : x
  2. Step 2: Convert to fraction form
    12,189.62/18,284.43 = 4,398.44/x
  3. Step 3: Cross multiply
    12,189.62x = 18,284.43 × 4,398.44
  4. Step 4: Simplify right side
    12,189.62x = 80,422,876.87
  5. Step 5: Solve for x
    x = 80,422,876.87/12,189.62
  6. Step 6: Final answer
    x = 6,597.66

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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.