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Finding the Fourth Proportional to 6,912.86, 10,369.28 and 1,718.73

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Solution

The fourth proportional to 6,912.86, 10,369.28 and 1,718.73 is: 2,578.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,912.86 : 10,369.28 = 1,718.73 : x
  2. Step 2: Convert to fraction form
    6,912.86/10,369.28 = 1,718.73/x
  3. Step 3: Cross multiply
    6,912.86x = 10,369.28 × 1,718.73
  4. Step 4: Simplify right side
    6,912.86x = 17,821,996.91
  5. Step 5: Solve for x
    x = 17,821,996.91/6,912.86
  6. Step 6: Final answer
    x = 2,578.10

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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.