Home / 6,939.72-10,396.62-5,397.48

Finding the Fourth Proportional to 6,939.72, 10,396.62 and 5,397.48

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Solution

The fourth proportional to 6,939.72, 10,396.62 and 5,397.48 is: 8,086.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,939.72 : 10,396.62 = 5,397.48 : x
  2. Step 2: Convert to fraction form
    6,939.72/10,396.62 = 5,397.48/x
  3. Step 3: Cross multiply
    6,939.72x = 10,396.62 × 5,397.48
  4. Step 4: Simplify right side
    6,939.72x = 56,115,548.52
  5. Step 5: Solve for x
    x = 56,115,548.52/6,939.72
  6. Step 6: Final answer
    x = 8,086.14

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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.