Home / 12,704.40-19,057-3,939.38

Finding the Fourth Proportional to 12,704.40, 19,057 and 3,939.38

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Solution

The fourth proportional to 12,704.40, 19,057 and 3,939.38 is: 5,909.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,704.40 : 19,057 = 3,939.38 : x
  2. Step 2: Convert to fraction form
    12,704.40/19,057 = 3,939.38/x
  3. Step 3: Cross multiply
    12,704.40x = 19,057 × 3,939.38
  4. Step 4: Simplify right side
    12,704.40x = 75,072,764.66
  5. Step 5: Solve for x
    x = 75,072,764.66/12,704.40
  6. Step 6: Final answer
    x = 5,909.19

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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.