Home / 12,726.60-19,086.84-3,840.09

Finding the Fourth Proportional to 12,726.60, 19,086.84 and 3,840.09

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Solution

The fourth proportional to 12,726.60, 19,086.84 and 3,840.09 is: 5,759.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,726.60 : 19,086.84 = 3,840.09 : x
  2. Step 2: Convert to fraction form
    12,726.60/19,086.84 = 3,840.09/x
  3. Step 3: Cross multiply
    12,726.60x = 19,086.84 × 3,840.09
  4. Step 4: Simplify right side
    12,726.60x = 73,295,183.42
  5. Step 5: Solve for x
    x = 73,295,183.42/12,726.60
  6. Step 6: Final answer
    x = 5,759.21

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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.