Home / 9,125.30-13,687.92-2,199.80

Finding the Fourth Proportional to 9,125.30, 13,687.92 and 2,199.80

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Solution

The fourth proportional to 9,125.30, 13,687.92 and 2,199.80 is: 3,299.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,125.30 : 13,687.92 = 2,199.80 : x
  2. Step 2: Convert to fraction form
    9,125.30/13,687.92 = 2,199.80/x
  3. Step 3: Cross multiply
    9,125.30x = 13,687.92 × 2,199.80
  4. Step 4: Simplify right side
    9,125.30x = 30,110,720.64
  5. Step 5: Solve for x
    x = 30,110,720.64/9,125.30
  6. Step 6: Final answer
    x = 3,299.70

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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.