Home / 9,418.39-12,999.17-6,231.75

Finding the Fourth Proportional to 9,418.39, 12,999.17 and 6,231.75

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Solution

The fourth proportional to 9,418.39, 12,999.17 and 6,231.75 is: 8,600.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,418.39 : 12,999.17 = 6,231.75 : x
  2. Step 2: Convert to fraction form
    9,418.39/12,999.17 = 6,231.75/x
  3. Step 3: Cross multiply
    9,418.39x = 12,999.17 × 6,231.75
  4. Step 4: Simplify right side
    9,418.39x = 81,007,481.49
  5. Step 5: Solve for x
    x = 81,007,481.49/9,418.39
  6. Step 6: Final answer
    x = 8,600.99

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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.