Home / 8,949.62-13,420.98-3,400.04

Finding the Fourth Proportional to 8,949.62, 13,420.98 and 3,400.04

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Solution

The fourth proportional to 8,949.62, 13,420.98 and 3,400.04 is: 5,098.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,949.62 : 13,420.98 = 3,400.04 : x
  2. Step 2: Convert to fraction form
    8,949.62/13,420.98 = 3,400.04/x
  3. Step 3: Cross multiply
    8,949.62x = 13,420.98 × 3,400.04
  4. Step 4: Simplify right side
    8,949.62x = 45,631,868.84
  5. Step 5: Solve for x
    x = 45,631,868.84/8,949.62
  6. Step 6: Final answer
    x = 5,098.75

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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.