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Finding the Fourth Proportional to 18,645.56, 27,967.44 and 6,957.88

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Solution

The fourth proportional to 18,645.56, 27,967.44 and 6,957.88 is: 10,436.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,645.56 : 27,967.44 = 6,957.88 : x
  2. Step 2: Convert to fraction form
    18,645.56/27,967.44 = 6,957.88/x
  3. Step 3: Cross multiply
    18,645.56x = 27,967.44 × 6,957.88
  4. Step 4: Simplify right side
    18,645.56x = 194,594,091.43
  5. Step 5: Solve for x
    x = 194,594,091.43/18,645.56
  6. Step 6: Final answer
    x = 10,436.48

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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.