Home / 18,067.23-27,106.32-12,812.40

Finding the Fourth Proportional to 18,067.23, 27,106.32 and 12,812.40

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Solution

The fourth proportional to 18,067.23, 27,106.32 and 12,812.40 is: 19,222.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,067.23 : 27,106.32 = 12,812.40 : x
  2. Step 2: Convert to fraction form
    18,067.23/27,106.32 = 12,812.40/x
  3. Step 3: Cross multiply
    18,067.23x = 27,106.32 × 12,812.40
  4. Step 4: Simplify right side
    18,067.23x = 347,297,014.37
  5. Step 5: Solve for x
    x = 347,297,014.37/18,067.23
  6. Step 6: Final answer
    x = 19,222.48

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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.