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Finding the Fourth Proportional to 8,665.33, 11,960 and 5,476.59

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Solution

The fourth proportional to 8,665.33, 11,960 and 5,476.59 is: 7,558.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,665.33 : 11,960 = 5,476.59 : x
  2. Step 2: Convert to fraction form
    8,665.33/11,960 = 5,476.59/x
  3. Step 3: Cross multiply
    8,665.33x = 11,960 × 5,476.59
  4. Step 4: Simplify right side
    8,665.33x = 65,500,016.40
  5. Step 5: Solve for x
    x = 65,500,016.40/8,665.33
  6. Step 6: Final answer
    x = 7,558.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.