Home / 11,131.70-16,689.65-5,581.04

Finding the Fourth Proportional to 11,131.70, 16,689.65 and 5,581.04

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Solution

The fourth proportional to 11,131.70, 16,689.65 and 5,581.04 is: 8,367.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,131.70 : 16,689.65 = 5,581.04 : x
  2. Step 2: Convert to fraction form
    11,131.70/16,689.65 = 5,581.04/x
  3. Step 3: Cross multiply
    11,131.70x = 16,689.65 × 5,581.04
  4. Step 4: Simplify right side
    11,131.70x = 93,145,492.88
  5. Step 5: Solve for x
    x = 93,145,492.88/11,131.70
  6. Step 6: Final answer
    x = 8,367.59

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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.