Home / 11,531.74-17,297.63-3,211.78

Finding the Fourth Proportional to 11,531.74, 17,297.63 and 3,211.78

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Solution

The fourth proportional to 11,531.74, 17,297.63 and 3,211.78 is: 4,817.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,531.74 : 17,297.63 = 3,211.78 : x
  2. Step 2: Convert to fraction form
    11,531.74/17,297.63 = 3,211.78/x
  3. Step 3: Cross multiply
    11,531.74x = 17,297.63 × 3,211.78
  4. Step 4: Simplify right side
    11,531.74x = 55,556,182.08
  5. Step 5: Solve for x
    x = 55,556,182.08/11,531.74
  6. Step 6: Final answer
    x = 4,817.68

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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.