Home / 12,728.07-19,092.11-3,494.07

Finding the Fourth Proportional to 12,728.07, 19,092.11 and 3,494.07

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Solution

The fourth proportional to 12,728.07, 19,092.11 and 3,494.07 is: 5,241.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,728.07 : 19,092.11 = 3,494.07 : x
  2. Step 2: Convert to fraction form
    12,728.07/19,092.11 = 3,494.07/x
  3. Step 3: Cross multiply
    12,728.07x = 19,092.11 × 3,494.07
  4. Step 4: Simplify right side
    12,728.07x = 66,709,151.32
  5. Step 5: Solve for x
    x = 66,709,151.32/12,728.07
  6. Step 6: Final answer
    x = 5,241.11

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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.