Home / 12,728.25-19,092.93-3,494.25

Finding the Fourth Proportional to 12,728.25, 19,092.93 and 3,494.25

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Solution

The fourth proportional to 12,728.25, 19,092.93 and 3,494.25 is: 5,241.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.25 : 19,092.93 = 3,494.25 : x
  2. Step 2: Convert to fraction form
    12,728.25/19,092.93 = 3,494.25/x
  3. Step 3: Cross multiply
    12,728.25x = 19,092.93 × 3,494.25
  4. Step 4: Simplify right side
    12,728.25x = 66,715,470.65
  5. Step 5: Solve for x
    x = 66,715,470.65/12,728.25
  6. Step 6: Final answer
    x = 5,241.53

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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.