Home / 11,144.70-16,722.45-8,511.30

Finding the Fourth Proportional to 11,144.70, 16,722.45 and 8,511.30

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Solution

The fourth proportional to 11,144.70, 16,722.45 and 8,511.30 is: 12,771.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,144.70 : 16,722.45 = 8,511.30 : x
  2. Step 2: Convert to fraction form
    11,144.70/16,722.45 = 8,511.30/x
  3. Step 3: Cross multiply
    11,144.70x = 16,722.45 × 8,511.30
  4. Step 4: Simplify right side
    11,144.70x = 142,329,788.69
  5. Step 5: Solve for x
    x = 142,329,788.69/11,144.70
  6. Step 6: Final answer
    x = 12,771.07

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1.5x scale

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.