Home / 12,771.63-17,625.20-7,183.95

Finding the Fourth Proportional to 12,771.63, 17,625.20 and 7,183.95

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Solution

The fourth proportional to 12,771.63, 17,625.20 and 7,183.95 is: 9,914.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,771.63 : 17,625.20 = 7,183.95 : x
  2. Step 2: Convert to fraction form
    12,771.63/17,625.20 = 7,183.95/x
  3. Step 3: Cross multiply
    12,771.63x = 17,625.20 × 7,183.95
  4. Step 4: Simplify right side
    12,771.63x = 126,618,519.62
  5. Step 5: Solve for x
    x = 126,618,519.62/12,771.63
  6. Step 6: Final answer
    x = 9,914.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.