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Finding the Fourth Proportional to 7,979.75, 11,885.34 and 7,563.41

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Solution

The fourth proportional to 7,979.75, 11,885.34 and 7,563.41 is: 11,265.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,979.75 : 11,885.34 = 7,563.41 : x
  2. Step 2: Convert to fraction form
    7,979.75/11,885.34 = 7,563.41/x
  3. Step 3: Cross multiply
    7,979.75x = 11,885.34 × 7,563.41
  4. Step 4: Simplify right side
    7,979.75x = 89,893,661.59
  5. Step 5: Solve for x
    x = 89,893,661.59/7,979.75
  6. Step 6: Final answer
    x = 11,265.22

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.