Home / 14,781.66-20,398.75-8,067.43

Finding the Fourth Proportional to 14,781.66, 20,398.75 and 8,067.43

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Solution

The fourth proportional to 14,781.66, 20,398.75 and 8,067.43 is: 11,133.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.66 : 20,398.75 = 8,067.43 : x
  2. Step 2: Convert to fraction form
    14,781.66/20,398.75 = 8,067.43/x
  3. Step 3: Cross multiply
    14,781.66x = 20,398.75 × 8,067.43
  4. Step 4: Simplify right side
    14,781.66x = 164,565,549.77
  5. Step 5: Solve for x
    x = 164,565,549.77/14,781.66
  6. Step 6: Final answer
    x = 11,133.09

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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.