Home / 9,381.87-14,072.49-2,808.09

Finding the Fourth Proportional to 9,381.87, 14,072.49 and 2,808.09

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Solution

The fourth proportional to 9,381.87, 14,072.49 and 2,808.09 is: 4,212.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,381.87 : 14,072.49 = 2,808.09 : x
  2. Step 2: Convert to fraction form
    9,381.87/14,072.49 = 2,808.09/x
  3. Step 3: Cross multiply
    9,381.87x = 14,072.49 × 2,808.09
  4. Step 4: Simplify right side
    9,381.87x = 39,516,818.44
  5. Step 5: Solve for x
    x = 39,516,818.44/9,381.87
  6. Step 6: Final answer
    x = 4,212.04

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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.