Home / 9,186.97-12,677.70-5,207.98

Finding the Fourth Proportional to 9,186.97, 12,677.70 and 5,207.98

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Solution

The fourth proportional to 9,186.97, 12,677.70 and 5,207.98 is: 7,186.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,186.97 : 12,677.70 = 5,207.98 : x
  2. Step 2: Convert to fraction form
    9,186.97/12,677.70 = 5,207.98/x
  3. Step 3: Cross multiply
    9,186.97x = 12,677.70 × 5,207.98
  4. Step 4: Simplify right side
    9,186.97x = 66,025,208.05
  5. Step 5: Solve for x
    x = 66,025,208.05/9,186.97
  6. Step 6: Final answer
    x = 7,186.83

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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.