Home / 8,178.26-11,292.36-6,286.91

Finding the Fourth Proportional to 8,178.26, 11,292.36 and 6,286.91

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Solution

The fourth proportional to 8,178.26, 11,292.36 and 6,286.91 is: 8,680.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,178.26 : 11,292.36 = 6,286.91 : x
  2. Step 2: Convert to fraction form
    8,178.26/11,292.36 = 6,286.91/x
  3. Step 3: Cross multiply
    8,178.26x = 11,292.36 × 6,286.91
  4. Step 4: Simplify right side
    8,178.26x = 70,994,051.01
  5. Step 5: Solve for x
    x = 70,994,051.01/8,178.26
  6. Step 6: Final answer
    x = 8,680.83

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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.