Home / 14,781.90-20,399.19-8,067.45

Finding the Fourth Proportional to 14,781.90, 20,399.19 and 8,067.45

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Solution

The fourth proportional to 14,781.90, 20,399.19 and 8,067.45 is: 11,133.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,781.90 : 20,399.19 = 8,067.45 : x
  2. Step 2: Convert to fraction form
    14,781.90/20,399.19 = 8,067.45/x
  3. Step 3: Cross multiply
    14,781.90x = 20,399.19 × 8,067.45
  4. Step 4: Simplify right side
    14,781.90x = 164,569,445.37
  5. Step 5: Solve for x
    x = 164,569,445.37/14,781.90
  6. Step 6: Final answer
    x = 11,133.17

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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.