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Finding the Fourth Proportional to 8,374.54, 11,553.17 and 5,186.99

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Solution

The fourth proportional to 8,374.54, 11,553.17 and 5,186.99 is: 7,155.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.54 : 11,553.17 = 5,186.99 : x
  2. Step 2: Convert to fraction form
    8,374.54/11,553.17 = 5,186.99/x
  3. Step 3: Cross multiply
    8,374.54x = 11,553.17 × 5,186.99
  4. Step 4: Simplify right side
    8,374.54x = 59,926,177.26
  5. Step 5: Solve for x
    x = 59,926,177.26/8,374.54
  6. Step 6: Final answer
    x = 7,155.76

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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.