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Finding the Fourth Proportional to 8,253.13, 12,379.80 and 3,059

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Solution

The fourth proportional to 8,253.13, 12,379.80 and 3,059 is: 4,588.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,253.13 : 12,379.80 = 3,059 : x
  2. Step 2: Convert to fraction form
    8,253.13/12,379.80 = 3,059/x
  3. Step 3: Cross multiply
    8,253.13x = 12,379.80 × 3,059
  4. Step 4: Simplify right side
    8,253.13x = 37,869,792.91
  5. Step 5: Solve for x
    x = 37,869,792.91/8,253.13
  6. Step 6: Final answer
    x = 4,588.54

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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.