Home / 12,234.24-16,882.80-6,645.12

Finding the Fourth Proportional to 12,234.24, 16,882.80 and 6,645.12

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Solution

The fourth proportional to 12,234.24, 16,882.80 and 6,645.12 is: 9,170.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,234.24 : 16,882.80 = 6,645.12 : x
  2. Step 2: Convert to fraction form
    12,234.24/16,882.80 = 6,645.12/x
  3. Step 3: Cross multiply
    12,234.24x = 16,882.80 × 6,645.12
  4. Step 4: Simplify right side
    12,234.24x = 112,188,231.94
  5. Step 5: Solve for x
    x = 112,188,231.94/12,234.24
  6. Step 6: Final answer
    x = 9,170.02

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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.