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Finding the Fourth Proportional to 18,608.33, 27,915.56 and 8,623.05

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Solution

The fourth proportional to 18,608.33, 27,915.56 and 8,623.05 is: 12,936.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,608.33 : 27,915.56 = 8,623.05 : x
  2. Step 2: Convert to fraction form
    18,608.33/27,915.56 = 8,623.05/x
  3. Step 3: Cross multiply
    18,608.33x = 27,915.56 × 8,623.05
  4. Step 4: Simplify right side
    18,608.33x = 240,717,269.66
  5. Step 5: Solve for x
    x = 240,717,269.66/18,608.33
  6. Step 6: Final answer
    x = 12,936.00

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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.