Home / 12,141.25-18,213.90-4,245.97

Finding the Fourth Proportional to 12,141.25, 18,213.90 and 4,245.97

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Solution

The fourth proportional to 12,141.25, 18,213.90 and 4,245.97 is: 6,369.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,141.25 : 18,213.90 = 4,245.97 : x
  2. Step 2: Convert to fraction form
    12,141.25/18,213.90 = 4,245.97/x
  3. Step 3: Cross multiply
    12,141.25x = 18,213.90 × 4,245.97
  4. Step 4: Simplify right side
    12,141.25x = 77,335,672.98
  5. Step 5: Solve for x
    x = 77,335,672.98/12,141.25
  6. Step 6: Final answer
    x = 6,369.66

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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.