Home / 10,687.72-16,033.68-3,290.92

Finding the Fourth Proportional to 10,687.72, 16,033.68 and 3,290.92

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Solution

The fourth proportional to 10,687.72, 16,033.68 and 3,290.92 is: 4,937.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,687.72 : 16,033.68 = 3,290.92 : x
  2. Step 2: Convert to fraction form
    10,687.72/16,033.68 = 3,290.92/x
  3. Step 3: Cross multiply
    10,687.72x = 16,033.68 × 3,290.92
  4. Step 4: Simplify right side
    10,687.72x = 52,765,558.19
  5. Step 5: Solve for x
    x = 52,765,558.19/10,687.72
  6. Step 6: Final answer
    x = 4,937.03

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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.