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Finding the Fourth Proportional to 8,850.24, 12,218.58 and 7,866.18

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Solution

The fourth proportional to 8,850.24, 12,218.58 and 7,866.18 is: 10,859.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,850.24 : 12,218.58 = 7,866.18 : x
  2. Step 2: Convert to fraction form
    8,850.24/12,218.58 = 7,866.18/x
  3. Step 3: Cross multiply
    8,850.24x = 12,218.58 × 7,866.18
  4. Step 4: Simplify right side
    8,850.24x = 96,113,549.62
  5. Step 5: Solve for x
    x = 96,113,549.62/8,850.24
  6. Step 6: Final answer
    x = 10,859.99

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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.