Home / 10,516.88-15,778.36-3,400.97

Finding the Fourth Proportional to 10,516.88, 15,778.36 and 3,400.97

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Solution

The fourth proportional to 10,516.88, 15,778.36 and 3,400.97 is: 5,102.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,516.88 : 15,778.36 = 3,400.97 : x
  2. Step 2: Convert to fraction form
    10,516.88/15,778.36 = 3,400.97/x
  3. Step 3: Cross multiply
    10,516.88x = 15,778.36 × 3,400.97
  4. Step 4: Simplify right side
    10,516.88x = 53,661,729.01
  5. Step 5: Solve for x
    x = 53,661,729.01/10,516.88
  6. Step 6: Final answer
    x = 5,102.44

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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.