Home / 8,202.60-11,321.14-5,137.88

Finding the Fourth Proportional to 8,202.60, 11,321.14 and 5,137.88

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Solution

The fourth proportional to 8,202.60, 11,321.14 and 5,137.88 is: 7,091.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,202.60 : 11,321.14 = 5,137.88 : x
  2. Step 2: Convert to fraction form
    8,202.60/11,321.14 = 5,137.88/x
  3. Step 3: Cross multiply
    8,202.60x = 11,321.14 × 5,137.88
  4. Step 4: Simplify right side
    8,202.60x = 58,166,658.78
  5. Step 5: Solve for x
    x = 58,166,658.78/8,202.60
  6. Step 6: Final answer
    x = 7,091.25

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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.