Home / 13,349.75-18,422.37-7,381.37

Finding the Fourth Proportional to 13,349.75, 18,422.37 and 7,381.37

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Solution

The fourth proportional to 13,349.75, 18,422.37 and 7,381.37 is: 10,186.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,349.75 : 18,422.37 = 7,381.37 : x
  2. Step 2: Convert to fraction form
    13,349.75/18,422.37 = 7,381.37/x
  3. Step 3: Cross multiply
    13,349.75x = 18,422.37 × 7,381.37
  4. Step 4: Simplify right side
    13,349.75x = 135,982,375.30
  5. Step 5: Solve for x
    x = 135,982,375.30/13,349.75
  6. Step 6: Final answer
    x = 10,186.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.