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Finding the Fourth Proportional to 18,642.82, 27,973.26 and 9,283.66

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Solution

The fourth proportional to 18,642.82, 27,973.26 and 9,283.66 is: 13,929.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,642.82 : 27,973.26 = 9,283.66 : x
  2. Step 2: Convert to fraction form
    18,642.82/27,973.26 = 9,283.66/x
  3. Step 3: Cross multiply
    18,642.82x = 27,973.26 × 9,283.66
  4. Step 4: Simplify right side
    18,642.82x = 259,694,234.93
  5. Step 5: Solve for x
    x = 259,694,234.93/18,642.82
  6. Step 6: Final answer
    x = 13,929.99

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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.