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Finding the Fourth Proportional to 8,708.48, 12,022.68 and 5,732.96

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Solution

The fourth proportional to 8,708.48, 12,022.68 and 5,732.96 is: 7,914.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,708.48 : 12,022.68 = 5,732.96 : x
  2. Step 2: Convert to fraction form
    8,708.48/12,022.68 = 5,732.96/x
  3. Step 3: Cross multiply
    8,708.48x = 12,022.68 × 5,732.96
  4. Step 4: Simplify right side
    8,708.48x = 68,925,595.09
  5. Step 5: Solve for x
    x = 68,925,595.09/8,708.48
  6. Step 6: Final answer
    x = 7,914.77

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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.