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Finding the Fourth Proportional to 11,112.96, 16,650.96 and 7,819.14

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Solution

The fourth proportional to 11,112.96, 16,650.96 and 7,819.14 is: 11,715.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,112.96 : 16,650.96 = 7,819.14 : x
  2. Step 2: Convert to fraction form
    11,112.96/16,650.96 = 7,819.14/x
  3. Step 3: Cross multiply
    11,112.96x = 16,650.96 × 7,819.14
  4. Step 4: Simplify right side
    11,112.96x = 130,196,187.37
  5. Step 5: Solve for x
    x = 130,196,187.37/11,112.96
  6. Step 6: Final answer
    x = 11,715.71

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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.