Home / 10,942.20-16,416-3,151.62

Finding the Fourth Proportional to 10,942.20, 16,416 and 3,151.62

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Solution

The fourth proportional to 10,942.20, 16,416 and 3,151.62 is: 4,728.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,942.20 : 16,416 = 3,151.62 : x
  2. Step 2: Convert to fraction form
    10,942.20/16,416 = 3,151.62/x
  3. Step 3: Cross multiply
    10,942.20x = 16,416 × 3,151.62
  4. Step 4: Simplify right side
    10,942.20x = 51,736,993.92
  5. Step 5: Solve for x
    x = 51,736,993.92/10,942.20
  6. Step 6: Final answer
    x = 4,728.21

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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.