Home / 11,213.09-16,817.07-3,315.73

Finding the Fourth Proportional to 11,213.09, 16,817.07 and 3,315.73

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Solution

The fourth proportional to 11,213.09, 16,817.07 and 3,315.73 is: 4,972.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,213.09 : 16,817.07 = 3,315.73 : x
  2. Step 2: Convert to fraction form
    11,213.09/16,817.07 = 3,315.73/x
  3. Step 3: Cross multiply
    11,213.09x = 16,817.07 × 3,315.73
  4. Step 4: Simplify right side
    11,213.09x = 55,760,863.51
  5. Step 5: Solve for x
    x = 55,760,863.51/11,213.09
  6. Step 6: Final answer
    x = 4,972.84

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1.5x scale

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.