Home / 8,189.72-11,301.85-4,786.92

Finding the Fourth Proportional to 8,189.72, 11,301.85 and 4,786.92

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Solution

The fourth proportional to 8,189.72, 11,301.85 and 4,786.92 is: 6,605.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,189.72 : 11,301.85 = 4,786.92 : x
  2. Step 2: Convert to fraction form
    8,189.72/11,301.85 = 4,786.92/x
  3. Step 3: Cross multiply
    8,189.72x = 11,301.85 × 4,786.92
  4. Step 4: Simplify right side
    8,189.72x = 54,101,051.80
  5. Step 5: Solve for x
    x = 54,101,051.80/8,189.72
  6. Step 6: Final answer
    x = 6,605.97

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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.