Home / 13,290.96-19,936.32-3,429.38

Finding the Fourth Proportional to 13,290.96, 19,936.32 and 3,429.38

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Solution

The fourth proportional to 13,290.96, 19,936.32 and 3,429.38 is: 5,144.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,290.96 : 19,936.32 = 3,429.38 : x
  2. Step 2: Convert to fraction form
    13,290.96/19,936.32 = 3,429.38/x
  3. Step 3: Cross multiply
    13,290.96x = 19,936.32 × 3,429.38
  4. Step 4: Simplify right side
    13,290.96x = 68,369,217.08
  5. Step 5: Solve for x
    x = 68,369,217.08/13,290.96
  6. Step 6: Final answer
    x = 5,144.04

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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.