Home / 13,067.21-19,697.26-12,305.15

Finding the Fourth Proportional to 13,067.21, 19,697.26 and 12,305.15

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Solution

The fourth proportional to 13,067.21, 19,697.26 and 12,305.15 is: 18,548.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,067.21 : 19,697.26 = 12,305.15 : x
  2. Step 2: Convert to fraction form
    13,067.21/19,697.26 = 12,305.15/x
  3. Step 3: Cross multiply
    13,067.21x = 19,697.26 × 12,305.15
  4. Step 4: Simplify right side
    13,067.21x = 242,377,677.36
  5. Step 5: Solve for x
    x = 242,377,677.36/13,067.21
  6. Step 6: Final answer
    x = 18,548.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.