Home / 11,975.34-17,960.82-4,186.38

Finding the Fourth Proportional to 11,975.34, 17,960.82 and 4,186.38

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Solution

The fourth proportional to 11,975.34, 17,960.82 and 4,186.38 is: 6,278.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,975.34 : 17,960.82 = 4,186.38 : x
  2. Step 2: Convert to fraction form
    11,975.34/17,960.82 = 4,186.38/x
  3. Step 3: Cross multiply
    11,975.34x = 17,960.82 × 4,186.38
  4. Step 4: Simplify right side
    11,975.34x = 75,190,817.63
  5. Step 5: Solve for x
    x = 75,190,817.63/11,975.34
  6. Step 6: Final answer
    x = 6,278.80

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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.