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Finding the Fourth Proportional to 6,888.65, 9,508.07 and 3,906.27

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Solution

The fourth proportional to 6,888.65, 9,508.07 and 3,906.27 is: 5,391.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,888.65 : 9,508.07 = 3,906.27 : x
  2. Step 2: Convert to fraction form
    6,888.65/9,508.07 = 3,906.27/x
  3. Step 3: Cross multiply
    6,888.65x = 9,508.07 × 3,906.27
  4. Step 4: Simplify right side
    6,888.65x = 37,141,021.53
  5. Step 5: Solve for x
    x = 37,141,021.53/6,888.65
  6. Step 6: Final answer
    x = 5,391.63

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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.