Home / 8,186.42-11,305.17-7,000.58

Finding the Fourth Proportional to 8,186.42, 11,305.17 and 7,000.58

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Solution

The fourth proportional to 8,186.42, 11,305.17 and 7,000.58 is: 9,667.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,186.42 : 11,305.17 = 7,000.58 : x
  2. Step 2: Convert to fraction form
    8,186.42/11,305.17 = 7,000.58/x
  3. Step 3: Cross multiply
    8,186.42x = 11,305.17 × 7,000.58
  4. Step 4: Simplify right side
    8,186.42x = 79,142,747.00
  5. Step 5: Solve for x
    x = 79,142,747.00/8,186.42
  6. Step 6: Final answer
    x = 9,667.56

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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.