Home / 8,105.17-11,184.31-5,981.86

Finding the Fourth Proportional to 8,105.17, 11,184.31 and 5,981.86

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Solution

The fourth proportional to 8,105.17, 11,184.31 and 5,981.86 is: 8,254.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,105.17 : 11,184.31 = 5,981.86 : x
  2. Step 2: Convert to fraction form
    8,105.17/11,184.31 = 5,981.86/x
  3. Step 3: Cross multiply
    8,105.17x = 11,184.31 × 5,981.86
  4. Step 4: Simplify right side
    8,105.17x = 66,902,976.62
  5. Step 5: Solve for x
    x = 66,902,976.62/8,105.17
  6. Step 6: Final answer
    x = 8,254.36

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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.