Home / 8,115.12-12,201.66-7,473.60

Finding the Fourth Proportional to 8,115.12, 12,201.66 and 7,473.60

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Solution

The fourth proportional to 8,115.12, 12,201.66 and 7,473.60 is: 11,237.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.12 : 12,201.66 = 7,473.60 : x
  2. Step 2: Convert to fraction form
    8,115.12/12,201.66 = 7,473.60/x
  3. Step 3: Cross multiply
    8,115.12x = 12,201.66 × 7,473.60
  4. Step 4: Simplify right side
    8,115.12x = 91,190,326.18
  5. Step 5: Solve for x
    x = 91,190,326.18/8,115.12
  6. Step 6: Final answer
    x = 11,237.09

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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.