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Finding the Fourth Proportional to 11,819.33, 17,728.98 and 8,110.30

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Solution

The fourth proportional to 11,819.33, 17,728.98 and 8,110.30 is: 12,165.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,819.33 : 17,728.98 = 8,110.30 : x
  2. Step 2: Convert to fraction form
    11,819.33/17,728.98 = 8,110.30/x
  3. Step 3: Cross multiply
    11,819.33x = 17,728.98 × 8,110.30
  4. Step 4: Simplify right side
    11,819.33x = 143,787,346.49
  5. Step 5: Solve for x
    x = 143,787,346.49/11,819.33
  6. Step 6: Final answer
    x = 12,165.44

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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.