Home / 11,939.66-17,908.27-3,175.46

Finding the Fourth Proportional to 11,939.66, 17,908.27 and 3,175.46

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Solution

The fourth proportional to 11,939.66, 17,908.27 and 3,175.46 is: 4,762.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,939.66 : 17,908.27 = 3,175.46 : x
  2. Step 2: Convert to fraction form
    11,939.66/17,908.27 = 3,175.46/x
  3. Step 3: Cross multiply
    11,939.66x = 17,908.27 × 3,175.46
  4. Step 4: Simplify right side
    11,939.66x = 56,866,995.05
  5. Step 5: Solve for x
    x = 56,866,995.05/11,939.66
  6. Step 6: Final answer
    x = 4,762.87

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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.