Home / 12,067.70-18,103.38-4,172.48

Finding the Fourth Proportional to 12,067.70, 18,103.38 and 4,172.48

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Solution

The fourth proportional to 12,067.70, 18,103.38 and 4,172.48 is: 6,259.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,067.70 : 18,103.38 = 4,172.48 : x
  2. Step 2: Convert to fraction form
    12,067.70/18,103.38 = 4,172.48/x
  3. Step 3: Cross multiply
    12,067.70x = 18,103.38 × 4,172.48
  4. Step 4: Simplify right side
    12,067.70x = 75,536,025.81
  5. Step 5: Solve for x
    x = 75,536,025.81/12,067.70
  6. Step 6: Final answer
    x = 6,259.35

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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.