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Finding the Fourth Proportional to 6,800, 9,384.12 and 4,006.16

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Solution

The fourth proportional to 6,800, 9,384.12 and 4,006.16 is: 5,528.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,800 : 9,384.12 = 4,006.16 : x
  2. Step 2: Convert to fraction form
    6,800/9,384.12 = 4,006.16/x
  3. Step 3: Cross multiply
    6,800x = 9,384.12 × 4,006.16
  4. Step 4: Simplify right side
    6,800x = 37,594,286.18
  5. Step 5: Solve for x
    x = 37,594,286.18/6,800
  6. Step 6: Final answer
    x = 5,528.57

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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.