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Finding the Fourth Proportional to 6,900.38, 10,325.94 and 5,979.09

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Solution

The fourth proportional to 6,900.38, 10,325.94 and 5,979.09 is: 8,947.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,900.38 : 10,325.94 = 5,979.09 : x
  2. Step 2: Convert to fraction form
    6,900.38/10,325.94 = 5,979.09/x
  3. Step 3: Cross multiply
    6,900.38x = 10,325.94 × 5,979.09
  4. Step 4: Simplify right side
    6,900.38x = 61,739,724.59
  5. Step 5: Solve for x
    x = 61,739,724.59/6,900.38
  6. Step 6: Final answer
    x = 8,947.29

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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.