Home / 8,868.88-13,299.18-5,172.04

Finding the Fourth Proportional to 8,868.88, 13,299.18 and 5,172.04

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Solution

The fourth proportional to 8,868.88, 13,299.18 and 5,172.04 is: 7,755.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,868.88 : 13,299.18 = 5,172.04 : x
  2. Step 2: Convert to fraction form
    8,868.88/13,299.18 = 5,172.04/x
  3. Step 3: Cross multiply
    8,868.88x = 13,299.18 × 5,172.04
  4. Step 4: Simplify right side
    8,868.88x = 68,783,890.93
  5. Step 5: Solve for x
    x = 68,783,890.93/8,868.88
  6. Step 6: Final answer
    x = 7,755.65

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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.