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Finding the Fourth Proportional to 8,930.48, 13,397.04 and 8,383.76

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Solution

The fourth proportional to 8,930.48, 13,397.04 and 8,383.76 is: 12,576.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,930.48 : 13,397.04 = 8,383.76 : x
  2. Step 2: Convert to fraction form
    8,930.48/13,397.04 = 8,383.76/x
  3. Step 3: Cross multiply
    8,930.48x = 13,397.04 × 8,383.76
  4. Step 4: Simplify right side
    8,930.48x = 112,317,568.07
  5. Step 5: Solve for x
    x = 112,317,568.07/8,930.48
  6. Step 6: Final answer
    x = 12,576.88

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.