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Finding the Fourth Proportional to 8,160.74, 11,257.82 and 5,326.80

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Solution

The fourth proportional to 8,160.74, 11,257.82 and 5,326.80 is: 7,348.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.74 : 11,257.82 = 5,326.80 : x
  2. Step 2: Convert to fraction form
    8,160.74/11,257.82 = 5,326.80/x
  3. Step 3: Cross multiply
    8,160.74x = 11,257.82 × 5,326.80
  4. Step 4: Simplify right side
    8,160.74x = 59,968,155.58
  5. Step 5: Solve for x
    x = 59,968,155.58/8,160.74
  6. Step 6: Final answer
    x = 7,348.37

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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.