Home / 12,194.12-18,272.10-9,427.61

Finding the Fourth Proportional to 12,194.12, 18,272.10 and 9,427.61

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Solution

The fourth proportional to 12,194.12, 18,272.10 and 9,427.61 is: 14,126.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,194.12 : 18,272.10 = 9,427.61 : x
  2. Step 2: Convert to fraction form
    12,194.12/18,272.10 = 9,427.61/x
  3. Step 3: Cross multiply
    12,194.12x = 18,272.10 × 9,427.61
  4. Step 4: Simplify right side
    12,194.12x = 172,262,232.68
  5. Step 5: Solve for x
    x = 172,262,232.68/12,194.12
  6. Step 6: Final answer
    x = 14,126.66

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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.