Home / 8,722.18-13,086.74-3,175.91

Finding the Fourth Proportional to 8,722.18, 13,086.74 and 3,175.91

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Solution

The fourth proportional to 8,722.18, 13,086.74 and 3,175.91 is: 4,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,722.18 : 13,086.74 = 3,175.91 : x
  2. Step 2: Convert to fraction form
    8,722.18/13,086.74 = 3,175.91/x
  3. Step 3: Cross multiply
    8,722.18x = 13,086.74 × 3,175.91
  4. Step 4: Simplify right side
    8,722.18x = 41,562,250.94
  5. Step 5: Solve for x
    x = 41,562,250.94/8,722.18
  6. Step 6: Final answer
    x = 4,765.12

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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.