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Finding the Fourth Proportional to 8,093.40, 11,169.78 and 5,109.08

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Solution

The fourth proportional to 8,093.40, 11,169.78 and 5,109.08 is: 7,051.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,093.40 : 11,169.78 = 5,109.08 : x
  2. Step 2: Convert to fraction form
    8,093.40/11,169.78 = 5,109.08/x
  3. Step 3: Cross multiply
    8,093.40x = 11,169.78 × 5,109.08
  4. Step 4: Simplify right side
    8,093.40x = 57,067,299.60
  5. Step 5: Solve for x
    x = 57,067,299.60/8,093.40
  6. Step 6: Final answer
    x = 7,051.09

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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.