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Finding the Fourth Proportional to 18,561.73, 27,852.17 and 12,326.05

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Solution

The fourth proportional to 18,561.73, 27,852.17 and 12,326.05 is: 18,495.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,561.73 : 27,852.17 = 12,326.05 : x
  2. Step 2: Convert to fraction form
    18,561.73/27,852.17 = 12,326.05/x
  3. Step 3: Cross multiply
    18,561.73x = 27,852.17 × 12,326.05
  4. Step 4: Simplify right side
    18,561.73x = 343,307,240.03
  5. Step 5: Solve for x
    x = 343,307,240.03/18,561.73
  6. Step 6: Final answer
    x = 18,495.43

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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.