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Finding the Fourth Proportional to 18,059.31, 27,079.23 and 8,193.21

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Solution

The fourth proportional to 18,059.31, 27,079.23 and 8,193.21 is: 12,285.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,059.31 : 27,079.23 = 8,193.21 : x
  2. Step 2: Convert to fraction form
    18,059.31/27,079.23 = 8,193.21/x
  3. Step 3: Cross multiply
    18,059.31x = 27,079.23 × 8,193.21
  4. Step 4: Simplify right side
    18,059.31x = 221,865,641.67
  5. Step 5: Solve for x
    x = 221,865,641.67/18,059.31
  6. Step 6: Final answer
    x = 12,285.39

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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.