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Finding the Fourth Proportional to 8,472.58, 11,696.25 and 5,644.72

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Solution

The fourth proportional to 8,472.58, 11,696.25 and 5,644.72 is: 7,792.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,472.58 : 11,696.25 = 5,644.72 : x
  2. Step 2: Convert to fraction form
    8,472.58/11,696.25 = 5,644.72/x
  3. Step 3: Cross multiply
    8,472.58x = 11,696.25 × 5,644.72
  4. Step 4: Simplify right side
    8,472.58x = 66,022,056.30
  5. Step 5: Solve for x
    x = 66,022,056.30/8,472.58
  6. Step 6: Final answer
    x = 7,792.44

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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.