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Finding the Fourth Proportional to 8,815.69, 12,166.20 and 4,836.81

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Solution

The fourth proportional to 8,815.69, 12,166.20 and 4,836.81 is: 6,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,815.69 : 12,166.20 = 4,836.81 : x
  2. Step 2: Convert to fraction form
    8,815.69/12,166.20 = 4,836.81/x
  3. Step 3: Cross multiply
    8,815.69x = 12,166.20 × 4,836.81
  4. Step 4: Simplify right side
    8,815.69x = 58,845,549.27
  5. Step 5: Solve for x
    x = 58,845,549.27/8,815.69
  6. Step 6: Final answer
    x = 6,675.10

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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.