Home / 11,926.53-17,889.79-3,161.37

Finding the Fourth Proportional to 11,926.53, 17,889.79 and 3,161.37

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Solution

The fourth proportional to 11,926.53, 17,889.79 and 3,161.37 is: 4,742.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.53 : 17,889.79 = 3,161.37 : x
  2. Step 2: Convert to fraction form
    11,926.53/17,889.79 = 3,161.37/x
  3. Step 3: Cross multiply
    11,926.53x = 17,889.79 × 3,161.37
  4. Step 4: Simplify right side
    11,926.53x = 56,556,245.41
  5. Step 5: Solve for x
    x = 56,556,245.41/11,926.53
  6. Step 6: Final answer
    x = 4,742.05

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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.