Home / 14,781.74-20,398.62-8,067.65

Finding the Fourth Proportional to 14,781.74, 20,398.62 and 8,067.65

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Solution

The fourth proportional to 14,781.74, 20,398.62 and 8,067.65 is: 11,133.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.74 : 20,398.62 = 8,067.65 : x
  2. Step 2: Convert to fraction form
    14,781.74/20,398.62 = 8,067.65/x
  3. Step 3: Cross multiply
    14,781.74x = 20,398.62 × 8,067.65
  4. Step 4: Simplify right side
    14,781.74x = 164,568,824.65
  5. Step 5: Solve for x
    x = 164,568,824.65/14,781.74
  6. Step 6: Final answer
    x = 11,133.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.