Home / 12,489.22-17,234.35-6,822.82

Finding the Fourth Proportional to 12,489.22, 17,234.35 and 6,822.82

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Solution

The fourth proportional to 12,489.22, 17,234.35 and 6,822.82 is: 9,415.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489.22 : 17,234.35 = 6,822.82 : x
  2. Step 2: Convert to fraction form
    12,489.22/17,234.35 = 6,822.82/x
  3. Step 3: Cross multiply
    12,489.22x = 17,234.35 × 6,822.82
  4. Step 4: Simplify right side
    12,489.22x = 117,586,867.87
  5. Step 5: Solve for x
    x = 117,586,867.87/12,489.22
  6. Step 6: Final answer
    x = 9,415.07

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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.