Home / 10,512.27-15,758.64-3,942.81

Finding the Fourth Proportional to 10,512.27, 15,758.64 and 3,942.81

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Solution

The fourth proportional to 10,512.27, 15,758.64 and 3,942.81 is: 5,910.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,512.27 : 15,758.64 = 3,942.81 : x
  2. Step 2: Convert to fraction form
    10,512.27/15,758.64 = 3,942.81/x
  3. Step 3: Cross multiply
    10,512.27x = 15,758.64 × 3,942.81
  4. Step 4: Simplify right side
    10,512.27x = 62,133,323.38
  5. Step 5: Solve for x
    x = 62,133,323.38/10,512.27
  6. Step 6: Final answer
    x = 5,910.55

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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.