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Finding the Fourth Proportional to 11,486.86, 15,850.62 and 6,451.62

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Solution

The fourth proportional to 11,486.86, 15,850.62 and 6,451.62 is: 8,902.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,486.86 : 15,850.62 = 6,451.62 : x
  2. Step 2: Convert to fraction form
    11,486.86/15,850.62 = 6,451.62/x
  3. Step 3: Cross multiply
    11,486.86x = 15,850.62 × 6,451.62
  4. Step 4: Simplify right side
    11,486.86x = 102,262,177.00
  5. Step 5: Solve for x
    x = 102,262,177.00/11,486.86
  6. Step 6: Final answer
    x = 8,902.54

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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.