Home / 8,108.83-12,151.09-6,257.17

Finding the Fourth Proportional to 8,108.83, 12,151.09 and 6,257.17

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Solution

The fourth proportional to 8,108.83, 12,151.09 and 6,257.17 is: 9,376.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,108.83 : 12,151.09 = 6,257.17 : x
  2. Step 2: Convert to fraction form
    8,108.83/12,151.09 = 6,257.17/x
  3. Step 3: Cross multiply
    8,108.83x = 12,151.09 × 6,257.17
  4. Step 4: Simplify right side
    8,108.83x = 76,031,435.82
  5. Step 5: Solve for x
    x = 76,031,435.82/8,108.83
  6. Step 6: Final answer
    x = 9,376.38

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1.5x scale

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.