Home / 13,942.11-20,913.63-5,052.96

Finding the Fourth Proportional to 13,942.11, 20,913.63 and 5,052.96

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Solution

The fourth proportional to 13,942.11, 20,913.63 and 5,052.96 is: 7,579.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.11 : 20,913.63 = 5,052.96 : x
  2. Step 2: Convert to fraction form
    13,942.11/20,913.63 = 5,052.96/x
  3. Step 3: Cross multiply
    13,942.11x = 20,913.63 × 5,052.96
  4. Step 4: Simplify right side
    13,942.11x = 105,675,735.84
  5. Step 5: Solve for x
    x = 105,675,735.84/13,942.11
  6. Step 6: Final answer
    x = 7,579.61

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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.