Home / 13,699.13-20,549.70-3,838.03

Finding the Fourth Proportional to 13,699.13, 20,549.70 and 3,838.03

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Solution

The fourth proportional to 13,699.13, 20,549.70 and 3,838.03 is: 5,757.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,699.13 : 20,549.70 = 3,838.03 : x
  2. Step 2: Convert to fraction form
    13,699.13/20,549.70 = 3,838.03/x
  3. Step 3: Cross multiply
    13,699.13x = 20,549.70 × 3,838.03
  4. Step 4: Simplify right side
    13,699.13x = 78,870,429.31
  5. Step 5: Solve for x
    x = 78,870,429.31/13,699.13
  6. Step 6: Final answer
    x = 5,757.33

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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.