Home / 12,561.12-18,839.24-3,793.98

Finding the Fourth Proportional to 12,561.12, 18,839.24 and 3,793.98

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Solution

The fourth proportional to 12,561.12, 18,839.24 and 3,793.98 is: 5,690.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,561.12 : 18,839.24 = 3,793.98 : x
  2. Step 2: Convert to fraction form
    12,561.12/18,839.24 = 3,793.98/x
  3. Step 3: Cross multiply
    12,561.12x = 18,839.24 × 3,793.98
  4. Step 4: Simplify right side
    12,561.12x = 71,475,709.26
  5. Step 5: Solve for x
    x = 71,475,709.26/12,561.12
  6. Step 6: Final answer
    x = 5,690.23

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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.