Home / 12,741.12-19,110.74-3,975.75

Finding the Fourth Proportional to 12,741.12, 19,110.74 and 3,975.75

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Solution

The fourth proportional to 12,741.12, 19,110.74 and 3,975.75 is: 5,963.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,741.12 : 19,110.74 = 3,975.75 : x
  2. Step 2: Convert to fraction form
    12,741.12/19,110.74 = 3,975.75/x
  3. Step 3: Cross multiply
    12,741.12x = 19,110.74 × 3,975.75
  4. Step 4: Simplify right side
    12,741.12x = 75,979,504.68
  5. Step 5: Solve for x
    x = 75,979,504.68/12,741.12
  6. Step 6: Final answer
    x = 5,963.33

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Double scale
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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.