Home / 13,660.08-18,850.73-7,691.82

Finding the Fourth Proportional to 13,660.08, 18,850.73 and 7,691.82

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Solution

The fourth proportional to 13,660.08, 18,850.73 and 7,691.82 is: 10,614.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,660.08 : 18,850.73 = 7,691.82 : x
  2. Step 2: Convert to fraction form
    13,660.08/18,850.73 = 7,691.82/x
  3. Step 3: Cross multiply
    13,660.08x = 18,850.73 × 7,691.82
  4. Step 4: Simplify right side
    13,660.08x = 144,996,383.57
  5. Step 5: Solve for x
    x = 144,996,383.57/13,660.08
  6. Step 6: Final answer
    x = 10,614.61

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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.