Home / 6,942.20-9,576.32-4,287.72

Finding the Fourth Proportional to 6,942.20, 9,576.32 and 4,287.72

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Solution

The fourth proportional to 6,942.20, 9,576.32 and 4,287.72 is: 5,914.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,942.20 : 9,576.32 = 4,287.72 : x
  2. Step 2: Convert to fraction form
    6,942.20/9,576.32 = 4,287.72/x
  3. Step 3: Cross multiply
    6,942.20x = 9,576.32 × 4,287.72
  4. Step 4: Simplify right side
    6,942.20x = 41,060,578.79
  5. Step 5: Solve for x
    x = 41,060,578.79/6,942.20
  6. Step 6: Final answer
    x = 5,914.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.