Home / 8,120.10-12,180.58-2,573.88

Finding the Fourth Proportional to 8,120.10, 12,180.58 and 2,573.88

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Solution

The fourth proportional to 8,120.10, 12,180.58 and 2,573.88 is: 3,860.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.10 : 12,180.58 = 2,573.88 : x
  2. Step 2: Convert to fraction form
    8,120.10/12,180.58 = 2,573.88/x
  3. Step 3: Cross multiply
    8,120.10x = 12,180.58 × 2,573.88
  4. Step 4: Simplify right side
    8,120.10x = 31,351,293.58
  5. Step 5: Solve for x
    x = 31,351,293.58/8,120.10
  6. Step 6: Final answer
    x = 3,860.95

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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.