Home / 12,175.20-16,803.68-9,194.40

Finding the Fourth Proportional to 12,175.20, 16,803.68 and 9,194.40

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Solution

The fourth proportional to 12,175.20, 16,803.68 and 9,194.40 is: 12,689.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,175.20 : 16,803.68 = 9,194.40 : x
  2. Step 2: Convert to fraction form
    12,175.20/16,803.68 = 9,194.40/x
  3. Step 3: Cross multiply
    12,175.20x = 16,803.68 × 9,194.40
  4. Step 4: Simplify right side
    12,175.20x = 154,499,755.39
  5. Step 5: Solve for x
    x = 154,499,755.39/12,175.20
  6. Step 6: Final answer
    x = 12,689.71

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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.