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Finding the Fourth Proportional to 8,481.60, 11,705.28 and 4,944.72

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Solution

The fourth proportional to 8,481.60, 11,705.28 and 4,944.72 is: 6,824.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,481.60 : 11,705.28 = 4,944.72 : x
  2. Step 2: Convert to fraction form
    8,481.60/11,705.28 = 4,944.72/x
  3. Step 3: Cross multiply
    8,481.60x = 11,705.28 × 4,944.72
  4. Step 4: Simplify right side
    8,481.60x = 57,879,332.12
  5. Step 5: Solve for x
    x = 57,879,332.12/8,481.60
  6. Step 6: Final answer
    x = 6,824.11

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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.