Home / 12,739.66-19,109.49-3,975.26

Finding the Fourth Proportional to 12,739.66, 19,109.49 and 3,975.26

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Solution

The fourth proportional to 12,739.66, 19,109.49 and 3,975.26 is: 5,962.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,739.66 : 19,109.49 = 3,975.26 : x
  2. Step 2: Convert to fraction form
    12,739.66/19,109.49 = 3,975.26/x
  3. Step 3: Cross multiply
    12,739.66x = 19,109.49 × 3,975.26
  4. Step 4: Simplify right side
    12,739.66x = 75,965,080.76
  5. Step 5: Solve for x
    x = 75,965,080.76/12,739.66
  6. Step 6: Final answer
    x = 5,962.88

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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.