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Finding the Fourth Proportional to 11,906.58, 16,430.78 and 6,601.48

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Solution

The fourth proportional to 11,906.58, 16,430.78 and 6,601.48 is: 9,109.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,906.58 : 16,430.78 = 6,601.48 : x
  2. Step 2: Convert to fraction form
    11,906.58/16,430.78 = 6,601.48/x
  3. Step 3: Cross multiply
    11,906.58x = 16,430.78 × 6,601.48
  4. Step 4: Simplify right side
    11,906.58x = 108,467,465.55
  5. Step 5: Solve for x
    x = 108,467,465.55/11,906.58
  6. Step 6: Final answer
    x = 9,109.88

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