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Finding the Fourth Proportional to 12,522.56, 18,777.56 and 6,979.73

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Solution

The fourth proportional to 12,522.56, 18,777.56 and 6,979.73 is: 10,466.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,522.56 : 18,777.56 = 6,979.73 : x
  2. Step 2: Convert to fraction form
    12,522.56/18,777.56 = 6,979.73/x
  3. Step 3: Cross multiply
    12,522.56x = 18,777.56 × 6,979.73
  4. Step 4: Simplify right side
    12,522.56x = 131,062,170.07
  5. Step 5: Solve for x
    x = 131,062,170.07/12,522.56
  6. Step 6: Final answer
    x = 10,466.09

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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.