Home / 12,729.14-19,086.72-4,408.44

Finding the Fourth Proportional to 12,729.14, 19,086.72 and 4,408.44

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Solution

The fourth proportional to 12,729.14, 19,086.72 and 4,408.44 is: 6,610.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,729.14 : 19,086.72 = 4,408.44 : x
  2. Step 2: Convert to fraction form
    12,729.14/19,086.72 = 4,408.44/x
  3. Step 3: Cross multiply
    12,729.14x = 19,086.72 × 4,408.44
  4. Step 4: Simplify right side
    12,729.14x = 84,142,659.92
  5. Step 5: Solve for x
    x = 84,142,659.92/12,729.14
  6. Step 6: Final answer
    x = 6,610.24

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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.