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Finding the Fourth Proportional to 11,199, 15,455 and 6,162.96

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Solution

The fourth proportional to 11,199, 15,455 and 6,162.96 is: 8,505.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,199 : 15,455 = 6,162.96 : x
  2. Step 2: Convert to fraction form
    11,199/15,455 = 6,162.96/x
  3. Step 3: Cross multiply
    11,199x = 15,455 × 6,162.96
  4. Step 4: Simplify right side
    11,199x = 95,248,546.80
  5. Step 5: Solve for x
    x = 95,248,546.80/11,199
  6. Step 6: Final answer
    x = 8,505.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.