Home / 10,121.92-15,174.80-6,793.68

Finding the Fourth Proportional to 10,121.92, 15,174.80 and 6,793.68

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Solution

The fourth proportional to 10,121.92, 15,174.80 and 6,793.68 is: 10,185.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,121.92 : 15,174.80 = 6,793.68 : x
  2. Step 2: Convert to fraction form
    10,121.92/15,174.80 = 6,793.68/x
  3. Step 3: Cross multiply
    10,121.92x = 15,174.80 × 6,793.68
  4. Step 4: Simplify right side
    10,121.92x = 103,092,735.26
  5. Step 5: Solve for x
    x = 103,092,735.26/10,121.92
  6. Step 6: Final answer
    x = 10,185.10

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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.