Home / 11,808.40-17,704.38-5,231.02

Finding the Fourth Proportional to 11,808.40, 17,704.38 and 5,231.02

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Solution

The fourth proportional to 11,808.40, 17,704.38 and 5,231.02 is: 7,842.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,808.40 : 17,704.38 = 5,231.02 : x
  2. Step 2: Convert to fraction form
    11,808.40/17,704.38 = 5,231.02/x
  3. Step 3: Cross multiply
    11,808.40x = 17,704.38 × 5,231.02
  4. Step 4: Simplify right side
    11,808.40x = 92,611,965.87
  5. Step 5: Solve for x
    x = 92,611,965.87/11,808.40
  6. Step 6: Final answer
    x = 7,842.89

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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.