Home / 8,120.43-12,180.99-2,573.66

Finding the Fourth Proportional to 8,120.43, 12,180.99 and 2,573.66

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Solution

The fourth proportional to 8,120.43, 12,180.99 and 2,573.66 is: 3,860.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.43 : 12,180.99 = 2,573.66 : x
  2. Step 2: Convert to fraction form
    8,120.43/12,180.99 = 2,573.66/x
  3. Step 3: Cross multiply
    8,120.43x = 12,180.99 × 2,573.66
  4. Step 4: Simplify right side
    8,120.43x = 31,349,665.82
  5. Step 5: Solve for x
    x = 31,349,665.82/8,120.43
  6. Step 6: Final answer
    x = 3,860.59

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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.