Home / 14,781.74-20,398.90-8,067.44

Finding the Fourth Proportional to 14,781.74, 20,398.90 and 8,067.44

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Solution

The fourth proportional to 14,781.74, 20,398.90 and 8,067.44 is: 11,133.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.74 : 20,398.90 = 8,067.44 : x
  2. Step 2: Convert to fraction form
    14,781.74/20,398.90 = 8,067.44/x
  3. Step 3: Cross multiply
    14,781.74x = 20,398.90 × 8,067.44
  4. Step 4: Simplify right side
    14,781.74x = 164,566,901.82
  5. Step 5: Solve for x
    x = 164,566,901.82/14,781.74
  6. Step 6: Final answer
    x = 11,133.12

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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.