Home / 11,151.88-16,729.98-4,231.24

Finding the Fourth Proportional to 11,151.88, 16,729.98 and 4,231.24

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Solution

The fourth proportional to 11,151.88, 16,729.98 and 4,231.24 is: 6,347.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,151.88 : 16,729.98 = 4,231.24 : x
  2. Step 2: Convert to fraction form
    11,151.88/16,729.98 = 4,231.24/x
  3. Step 3: Cross multiply
    11,151.88x = 16,729.98 × 4,231.24
  4. Step 4: Simplify right side
    11,151.88x = 70,788,560.58
  5. Step 5: Solve for x
    x = 70,788,560.58/11,151.88
  6. Step 6: Final answer
    x = 6,347.68

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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.