Home / 13,817.16-20,725.89-3,956.43

Finding the Fourth Proportional to 13,817.16, 20,725.89 and 3,956.43

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Solution

The fourth proportional to 13,817.16, 20,725.89 and 3,956.43 is: 5,934.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,817.16 : 20,725.89 = 3,956.43 : x
  2. Step 2: Convert to fraction form
    13,817.16/20,725.89 = 3,956.43/x
  3. Step 3: Cross multiply
    13,817.16x = 20,725.89 × 3,956.43
  4. Step 4: Simplify right side
    13,817.16x = 82,000,532.97
  5. Step 5: Solve for x
    x = 82,000,532.97/13,817.16
  6. Step 6: Final answer
    x = 5,934.69

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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.