Home / 8,434.11-11,620.08-5,879.46

Finding the Fourth Proportional to 8,434.11, 11,620.08 and 5,879.46

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Solution

The fourth proportional to 8,434.11, 11,620.08 and 5,879.46 is: 8,100.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,434.11 : 11,620.08 = 5,879.46 : x
  2. Step 2: Convert to fraction form
    8,434.11/11,620.08 = 5,879.46/x
  3. Step 3: Cross multiply
    8,434.11x = 11,620.08 × 5,879.46
  4. Step 4: Simplify right side
    8,434.11x = 68,319,795.56
  5. Step 5: Solve for x
    x = 68,319,795.56/8,434.11
  6. Step 6: Final answer
    x = 8,100.42

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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.