Home / 12,077.08-18,115.62-3,313.28

Finding the Fourth Proportional to 12,077.08, 18,115.62 and 3,313.28

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Solution

The fourth proportional to 12,077.08, 18,115.62 and 3,313.28 is: 4,969.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,077.08 : 18,115.62 = 3,313.28 : x
  2. Step 2: Convert to fraction form
    12,077.08/18,115.62 = 3,313.28/x
  3. Step 3: Cross multiply
    12,077.08x = 18,115.62 × 3,313.28
  4. Step 4: Simplify right side
    12,077.08x = 60,022,121.43
  5. Step 5: Solve for x
    x = 60,022,121.43/12,077.08
  6. Step 6: Final answer
    x = 4,969.92

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Similar ratio
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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.