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Finding the Fourth Proportional to 18,354.42, 27,514.91 and 6,664.91

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Solution

The fourth proportional to 18,354.42, 27,514.91 and 6,664.91 is: 9,991.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,354.42 : 27,514.91 = 6,664.91 : x
  2. Step 2: Convert to fraction form
    18,354.42/27,514.91 = 6,664.91/x
  3. Step 3: Cross multiply
    18,354.42x = 27,514.91 × 6,664.91
  4. Step 4: Simplify right side
    18,354.42x = 183,384,277.90
  5. Step 5: Solve for x
    x = 183,384,277.90/18,354.42
  6. Step 6: Final answer
    x = 9,991.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.