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Finding the Fourth Proportional to 9,711.44, 14,564.48 and 2,689.78

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Solution

The fourth proportional to 9,711.44, 14,564.48 and 2,689.78 is: 4,033.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,711.44 : 14,564.48 = 2,689.78 : x
  2. Step 2: Convert to fraction form
    9,711.44/14,564.48 = 2,689.78/x
  3. Step 3: Cross multiply
    9,711.44x = 14,564.48 × 2,689.78
  4. Step 4: Simplify right side
    9,711.44x = 39,175,247.01
  5. Step 5: Solve for x
    x = 39,175,247.01/9,711.44
  6. Step 6: Final answer
    x = 4,033.93

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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.