Home / 13,921-20,882.66-4,560.82

Finding the Fourth Proportional to 13,921, 20,882.66 and 4,560.82

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Solution

The fourth proportional to 13,921, 20,882.66 and 4,560.82 is: 6,841.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,921 : 20,882.66 = 4,560.82 : x
  2. Step 2: Convert to fraction form
    13,921/20,882.66 = 4,560.82/x
  3. Step 3: Cross multiply
    13,921x = 20,882.66 × 4,560.82
  4. Step 4: Simplify right side
    13,921x = 95,242,053.38
  5. Step 5: Solve for x
    x = 95,242,053.38/13,921
  6. Step 6: Final answer
    x = 6,841.61

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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.