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Finding the Fourth Proportional to 8,751.42, 13,123.68 and 3,817.68

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Solution

The fourth proportional to 8,751.42, 13,123.68 and 3,817.68 is: 5,725.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,751.42 : 13,123.68 = 3,817.68 : x
  2. Step 2: Convert to fraction form
    8,751.42/13,123.68 = 3,817.68/x
  3. Step 3: Cross multiply
    8,751.42x = 13,123.68 × 3,817.68
  4. Step 4: Simplify right side
    8,751.42x = 50,102,010.66
  5. Step 5: Solve for x
    x = 50,102,010.66/8,751.42
  6. Step 6: Final answer
    x = 5,725.01

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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.