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Finding the Fourth Proportional to 9,009.96, 13,516.38 and 3,815.88

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Solution

The fourth proportional to 9,009.96, 13,516.38 and 3,815.88 is: 5,724.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,009.96 : 13,516.38 = 3,815.88 : x
  2. Step 2: Convert to fraction form
    9,009.96/13,516.38 = 3,815.88/x
  3. Step 3: Cross multiply
    9,009.96x = 13,516.38 × 3,815.88
  4. Step 4: Simplify right side
    9,009.96x = 51,576,884.11
  5. Step 5: Solve for x
    x = 51,576,884.11/9,009.96
  6. Step 6: Final answer
    x = 5,724.43

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Why These Related Problems?

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