Home / 8,101.77-12,135.60-3,722.91

Finding the Fourth Proportional to 8,101.77, 12,135.60 and 3,722.91

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Solution

The fourth proportional to 8,101.77, 12,135.60 and 3,722.91 is: 5,576.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.77 : 12,135.60 = 3,722.91 : x
  2. Step 2: Convert to fraction form
    8,101.77/12,135.60 = 3,722.91/x
  3. Step 3: Cross multiply
    8,101.77x = 12,135.60 × 3,722.91
  4. Step 4: Simplify right side
    8,101.77x = 45,179,746.60
  5. Step 5: Solve for x
    x = 45,179,746.60/8,101.77
  6. Step 6: Final answer
    x = 5,576.53

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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.