Home / 11,926.89-17,891.15-3,161.52

Finding the Fourth Proportional to 11,926.89, 17,891.15 and 3,161.52

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Solution

The fourth proportional to 11,926.89, 17,891.15 and 3,161.52 is: 4,742.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,926.89 : 17,891.15 = 3,161.52 : x
  2. Step 2: Convert to fraction form
    11,926.89/17,891.15 = 3,161.52/x
  3. Step 3: Cross multiply
    11,926.89x = 17,891.15 × 3,161.52
  4. Step 4: Simplify right side
    11,926.89x = 56,563,212.74
  5. Step 5: Solve for x
    x = 56,563,212.74/11,926.89
  6. Step 6: Final answer
    x = 4,742.49

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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.