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Finding the Fourth Proportional to 6,609.69, 9,911.65 and 2,502.81

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Solution

The fourth proportional to 6,609.69, 9,911.65 and 2,502.81 is: 3,753.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,609.69 : 9,911.65 = 2,502.81 : x
  2. Step 2: Convert to fraction form
    6,609.69/9,911.65 = 2,502.81/x
  3. Step 3: Cross multiply
    6,609.69x = 9,911.65 × 2,502.81
  4. Step 4: Simplify right side
    6,609.69x = 24,806,976.74
  5. Step 5: Solve for x
    x = 24,806,976.74/6,609.69
  6. Step 6: Final answer
    x = 3,753.12

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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.