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Finding the Fourth Proportional to 9,168.33, 12,640.02 and 7,286.13

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Solution

The fourth proportional to 9,168.33, 12,640.02 and 7,286.13 is: 10,045.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,168.33 : 12,640.02 = 7,286.13 : x
  2. Step 2: Convert to fraction form
    9,168.33/12,640.02 = 7,286.13/x
  3. Step 3: Cross multiply
    9,168.33x = 12,640.02 × 7,286.13
  4. Step 4: Simplify right side
    9,168.33x = 92,096,828.92
  5. Step 5: Solve for x
    x = 92,096,828.92/9,168.33
  6. Step 6: Final answer
    x = 10,045.10

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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.