Home / 8,108.16-12,163.52-2,917.76

Finding the Fourth Proportional to 8,108.16, 12,163.52 and 2,917.76

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Solution

The fourth proportional to 8,108.16, 12,163.52 and 2,917.76 is: 4,377.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.16 : 12,163.52 = 2,917.76 : x
  2. Step 2: Convert to fraction form
    8,108.16/12,163.52 = 2,917.76/x
  3. Step 3: Cross multiply
    8,108.16x = 12,163.52 × 2,917.76
  4. Step 4: Simplify right side
    8,108.16x = 35,490,232.12
  5. Step 5: Solve for x
    x = 35,490,232.12/8,108.16
  6. Step 6: Final answer
    x = 4,377.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.