Home / 12,739.26-19,110.60-3,975.06

Finding the Fourth Proportional to 12,739.26, 19,110.60 and 3,975.06

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Solution

The fourth proportional to 12,739.26, 19,110.60 and 3,975.06 is: 5,963.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.26 : 19,110.60 = 3,975.06 : x
  2. Step 2: Convert to fraction form
    12,739.26/19,110.60 = 3,975.06/x
  3. Step 3: Cross multiply
    12,739.26x = 19,110.60 × 3,975.06
  4. Step 4: Simplify right side
    12,739.26x = 75,965,781.64
  5. Step 5: Solve for x
    x = 75,965,781.64/12,739.26
  6. Step 6: Final answer
    x = 5,963.12

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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.