Home / 10,520.66-15,776.37-3,942.24

Finding the Fourth Proportional to 10,520.66, 15,776.37 and 3,942.24

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Solution

The fourth proportional to 10,520.66, 15,776.37 and 3,942.24 is: 5,911.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,520.66 : 15,776.37 = 3,942.24 : x
  2. Step 2: Convert to fraction form
    10,520.66/15,776.37 = 3,942.24/x
  3. Step 3: Cross multiply
    10,520.66x = 15,776.37 × 3,942.24
  4. Step 4: Simplify right side
    10,520.66x = 62,194,236.87
  5. Step 5: Solve for x
    x = 62,194,236.87/10,520.66
  6. Step 6: Final answer
    x = 5,911.63

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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.