Home / 8,119.94-12,180.24-2,573.16

Finding the Fourth Proportional to 8,119.94, 12,180.24 and 2,573.16

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Solution

The fourth proportional to 8,119.94, 12,180.24 and 2,573.16 is: 3,859.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,119.94 : 12,180.24 = 2,573.16 : x
  2. Step 2: Convert to fraction form
    8,119.94/12,180.24 = 2,573.16/x
  3. Step 3: Cross multiply
    8,119.94x = 12,180.24 × 2,573.16
  4. Step 4: Simplify right side
    8,119.94x = 31,341,645.46
  5. Step 5: Solve for x
    x = 31,341,645.46/8,119.94
  6. Step 6: Final answer
    x = 3,859.84

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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.