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Finding the Fourth Proportional to 18,630.80, 27,947.52 and 6,944

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Solution

The fourth proportional to 18,630.80, 27,947.52 and 6,944 is: 10,416.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,630.80 : 27,947.52 = 6,944 : x
  2. Step 2: Convert to fraction form
    18,630.80/27,947.52 = 6,944/x
  3. Step 3: Cross multiply
    18,630.80x = 27,947.52 × 6,944
  4. Step 4: Simplify right side
    18,630.80x = 194,067,578.88
  5. Step 5: Solve for x
    x = 194,067,578.88/18,630.80
  6. Step 6: Final answer
    x = 10,416.49

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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.