Home / 11,231.80-16,847.60-2,911.08

Finding the Fourth Proportional to 11,231.80, 16,847.60 and 2,911.08

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Solution

The fourth proportional to 11,231.80, 16,847.60 and 2,911.08 is: 4,366.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,231.80 : 16,847.60 = 2,911.08 : x
  2. Step 2: Convert to fraction form
    11,231.80/16,847.60 = 2,911.08/x
  3. Step 3: Cross multiply
    11,231.80x = 16,847.60 × 2,911.08
  4. Step 4: Simplify right side
    11,231.80x = 49,044,711.41
  5. Step 5: Solve for x
    x = 49,044,711.41/11,231.80
  6. Step 6: Final answer
    x = 4,366.59

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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.