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Finding the Fourth Proportional to 6,813.65, 10,223.72 and 3,892.79

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Solution

The fourth proportional to 6,813.65, 10,223.72 and 3,892.79 is: 5,841.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,813.65 : 10,223.72 = 3,892.79 : x
  2. Step 2: Convert to fraction form
    6,813.65/10,223.72 = 3,892.79/x
  3. Step 3: Cross multiply
    6,813.65x = 10,223.72 × 3,892.79
  4. Step 4: Simplify right side
    6,813.65x = 39,798,794.98
  5. Step 5: Solve for x
    x = 39,798,794.98/6,813.65
  6. Step 6: Final answer
    x = 5,841.04

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1.5x scale

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.