Home / 13,757.82-20,622.61-5,434.46

Finding the Fourth Proportional to 13,757.82, 20,622.61 and 5,434.46

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Solution

The fourth proportional to 13,757.82, 20,622.61 and 5,434.46 is: 8,146.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,757.82 : 20,622.61 = 5,434.46 : x
  2. Step 2: Convert to fraction form
    13,757.82/20,622.61 = 5,434.46/x
  3. Step 3: Cross multiply
    13,757.82x = 20,622.61 × 5,434.46
  4. Step 4: Simplify right side
    13,757.82x = 112,072,749.14
  5. Step 5: Solve for x
    x = 112,072,749.14/13,757.82
  6. Step 6: Final answer
    x = 8,146.11

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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.