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Finding the Fourth Proportional to 8,661.80, 11,955.28 and 5,675.94

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Solution

The fourth proportional to 8,661.80, 11,955.28 and 5,675.94 is: 7,834.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,661.80 : 11,955.28 = 5,675.94 : x
  2. Step 2: Convert to fraction form
    8,661.80/11,955.28 = 5,675.94/x
  3. Step 3: Cross multiply
    8,661.80x = 11,955.28 × 5,675.94
  4. Step 4: Simplify right side
    8,661.80x = 67,857,451.96
  5. Step 5: Solve for x
    x = 67,857,451.96/8,661.80
  6. Step 6: Final answer
    x = 7,834.11

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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.