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Finding the Fourth Proportional to 8,790, 13,183.56 and 6,185.04

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Solution

The fourth proportional to 8,790, 13,183.56 and 6,185.04 is: 9,276.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,790 : 13,183.56 = 6,185.04 : x
  2. Step 2: Convert to fraction form
    8,790/13,183.56 = 6,185.04/x
  3. Step 3: Cross multiply
    8,790x = 13,183.56 × 6,185.04
  4. Step 4: Simplify right side
    8,790x = 81,540,845.94
  5. Step 5: Solve for x
    x = 81,540,845.94/8,790
  6. Step 6: Final answer
    x = 9,276.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.