Home / 11,971.13-17,956.29-3,205.99

Finding the Fourth Proportional to 11,971.13, 17,956.29 and 3,205.99

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Solution

The fourth proportional to 11,971.13, 17,956.29 and 3,205.99 is: 4,808.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.13 : 17,956.29 = 3,205.99 : x
  2. Step 2: Convert to fraction form
    11,971.13/17,956.29 = 3,205.99/x
  3. Step 3: Cross multiply
    11,971.13x = 17,956.29 × 3,205.99
  4. Step 4: Simplify right side
    11,971.13x = 57,567,596.40
  5. Step 5: Solve for x
    x = 57,567,596.40/11,971.13
  6. Step 6: Final answer
    x = 4,808.87

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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.