Home / 8,791.13-13,186.40-4,109.43

Finding the Fourth Proportional to 8,791.13, 13,186.40 and 4,109.43

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Solution

The fourth proportional to 8,791.13, 13,186.40 and 4,109.43 is: 6,164.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791.13 : 13,186.40 = 4,109.43 : x
  2. Step 2: Convert to fraction form
    8,791.13/13,186.40 = 4,109.43/x
  3. Step 3: Cross multiply
    8,791.13x = 13,186.40 × 4,109.43
  4. Step 4: Simplify right side
    8,791.13x = 54,188,616.65
  5. Step 5: Solve for x
    x = 54,188,616.65/8,791.13
  6. Step 6: Final answer
    x = 6,164.01

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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.