Home / 13,942.46-20,913.56-3,412.53

Finding the Fourth Proportional to 13,942.46, 20,913.56 and 3,412.53

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Solution

The fourth proportional to 13,942.46, 20,913.56 and 3,412.53 is: 5,118.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,942.46 : 20,913.56 = 3,412.53 : x
  2. Step 2: Convert to fraction form
    13,942.46/20,913.56 = 3,412.53/x
  3. Step 3: Cross multiply
    13,942.46x = 20,913.56 × 3,412.53
  4. Step 4: Simplify right side
    13,942.46x = 71,368,054.87
  5. Step 5: Solve for x
    x = 71,368,054.87/13,942.46
  6. Step 6: Final answer
    x = 5,118.76

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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.