Home / 13,429.38-20,141.03-5,106.44

Finding the Fourth Proportional to 13,429.38, 20,141.03 and 5,106.44

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Solution

The fourth proportional to 13,429.38, 20,141.03 and 5,106.44 is: 7,658.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,429.38 : 20,141.03 = 5,106.44 : x
  2. Step 2: Convert to fraction form
    13,429.38/20,141.03 = 5,106.44/x
  3. Step 3: Cross multiply
    13,429.38x = 20,141.03 × 5,106.44
  4. Step 4: Simplify right side
    13,429.38x = 102,848,835.00
  5. Step 5: Solve for x
    x = 102,848,835.00/13,429.38
  6. Step 6: Final answer
    x = 7,658.49

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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.