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Finding the Fourth Proportional to 6,480.81, 8,930.25 and 6,072.57

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Solution

The fourth proportional to 6,480.81, 8,930.25 and 6,072.57 is: 8,367.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,480.81 : 8,930.25 = 6,072.57 : x
  2. Step 2: Convert to fraction form
    6,480.81/8,930.25 = 6,072.57/x
  3. Step 3: Cross multiply
    6,480.81x = 8,930.25 × 6,072.57
  4. Step 4: Simplify right side
    6,480.81x = 54,229,568.24
  5. Step 5: Solve for x
    x = 54,229,568.24/6,480.81
  6. Step 6: Final answer
    x = 8,367.71

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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.