Home / 10,942.20-16,416.18-3,151.64

Finding the Fourth Proportional to 10,942.20, 16,416.18 and 3,151.64

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Solution

The fourth proportional to 10,942.20, 16,416.18 and 3,151.64 is: 4,728.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,942.20 : 16,416.18 = 3,151.64 : x
  2. Step 2: Convert to fraction form
    10,942.20/16,416.18 = 3,151.64/x
  3. Step 3: Cross multiply
    10,942.20x = 16,416.18 × 3,151.64
  4. Step 4: Simplify right side
    10,942.20x = 51,737,889.54
  5. Step 5: Solve for x
    x = 51,737,889.54/10,942.20
  6. Step 6: Final answer
    x = 4,728.29

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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.