Home / 9,879.82-13,634.17-5,403.56

Finding the Fourth Proportional to 9,879.82, 13,634.17 and 5,403.56

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Solution

The fourth proportional to 9,879.82, 13,634.17 and 5,403.56 is: 7,456.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,879.82 : 13,634.17 = 5,403.56 : x
  2. Step 2: Convert to fraction form
    9,879.82/13,634.17 = 5,403.56/x
  3. Step 3: Cross multiply
    9,879.82x = 13,634.17 × 5,403.56
  4. Step 4: Simplify right side
    9,879.82x = 73,672,973.97
  5. Step 5: Solve for x
    x = 73,672,973.97/9,879.82
  6. Step 6: Final answer
    x = 7,456.92

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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.