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Finding the Fourth Proportional to 6,759.00, 10,138.51 and 4,921.81

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Solution

The fourth proportional to 6,759.00, 10,138.51 and 4,921.81 is: 7,382.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,759.00 : 10,138.51 = 4,921.81 : x
  2. Step 2: Convert to fraction form
    6,759.00/10,138.51 = 4,921.81/x
  3. Step 3: Cross multiply
    6,759.00x = 10,138.51 × 4,921.81
  4. Step 4: Simplify right side
    6,759.00x = 49,899,806.94
  5. Step 5: Solve for x
    x = 49,899,806.94/6,759.00
  6. Step 6: Final answer
    x = 7,382.71

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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.