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Finding the Fourth Proportional to 8,485.26, 11,705.22 and 4,945.56

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Solution

The fourth proportional to 8,485.26, 11,705.22 and 4,945.56 is: 6,822.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,485.26 : 11,705.22 = 4,945.56 : x
  2. Step 2: Convert to fraction form
    8,485.26/11,705.22 = 4,945.56/x
  3. Step 3: Cross multiply
    8,485.26x = 11,705.22 × 4,945.56
  4. Step 4: Simplify right side
    8,485.26x = 57,888,867.82
  5. Step 5: Solve for x
    x = 57,888,867.82/8,485.26
  6. Step 6: Final answer
    x = 6,822.29

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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.