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Finding the Fourth Proportional to 18,493.98, 27,738.45 and 6,012.78

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Solution

The fourth proportional to 18,493.98, 27,738.45 and 6,012.78 is: 9,018.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,493.98 : 27,738.45 = 6,012.78 : x
  2. Step 2: Convert to fraction form
    18,493.98/27,738.45 = 6,012.78/x
  3. Step 3: Cross multiply
    18,493.98x = 27,738.45 × 6,012.78
  4. Step 4: Simplify right side
    18,493.98x = 166,785,197.39
  5. Step 5: Solve for x
    x = 166,785,197.39/18,493.98
  6. Step 6: Final answer
    x = 9,018.35

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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.