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Finding the Fourth Proportional to 8,477, 11,698.42 and 4,940.42

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Solution

The fourth proportional to 8,477, 11,698.42 and 4,940.42 is: 6,817.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,477 : 11,698.42 = 4,940.42 : x
  2. Step 2: Convert to fraction form
    8,477/11,698.42 = 4,940.42/x
  3. Step 3: Cross multiply
    8,477x = 11,698.42 × 4,940.42
  4. Step 4: Simplify right side
    8,477x = 57,795,108.14
  5. Step 5: Solve for x
    x = 57,795,108.14/8,477
  6. Step 6: Final answer
    x = 6,817.87

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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.