Home / 13,083.23-18,057.45-7,418.09

Finding the Fourth Proportional to 13,083.23, 18,057.45 and 7,418.09

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Solution

The fourth proportional to 13,083.23, 18,057.45 and 7,418.09 is: 10,238.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,083.23 : 18,057.45 = 7,418.09 : x
  2. Step 2: Convert to fraction form
    13,083.23/18,057.45 = 7,418.09/x
  3. Step 3: Cross multiply
    13,083.23x = 18,057.45 × 7,418.09
  4. Step 4: Simplify right side
    13,083.23x = 133,951,789.27
  5. Step 5: Solve for x
    x = 133,951,789.27/13,083.23
  6. Step 6: Final answer
    x = 10,238.43

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1.5x scale

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.