Home / 10,146.05-15,194.22-8,380.25

Finding the Fourth Proportional to 10,146.05, 15,194.22 and 8,380.25

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Solution

The fourth proportional to 10,146.05, 15,194.22 and 8,380.25 is: 12,549.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,146.05 : 15,194.22 = 8,380.25 : x
  2. Step 2: Convert to fraction form
    10,146.05/15,194.22 = 8,380.25/x
  3. Step 3: Cross multiply
    10,146.05x = 15,194.22 × 8,380.25
  4. Step 4: Simplify right side
    10,146.05x = 127,331,286.18
  5. Step 5: Solve for x
    x = 127,331,286.18/10,146.05
  6. Step 6: Final answer
    x = 12,549.84

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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.