Home / 18,664.63-25,789.97-14,918.72

Finding the Fourth Proportional to 18,664.63, 25,789.97 and 14,918.72

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Solution

The fourth proportional to 18,664.63, 25,789.97 and 14,918.72 is: 20,614.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.63 : 25,789.97 = 14,918.72 : x
  2. Step 2: Convert to fraction form
    18,664.63/25,789.97 = 14,918.72/x
  3. Step 3: Cross multiply
    18,664.63x = 25,789.97 × 14,918.72
  4. Step 4: Simplify right side
    18,664.63x = 384,753,249.59
  5. Step 5: Solve for x
    x = 384,753,249.59/18,664.63
  6. Step 6: Final answer
    x = 20,614.03

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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.