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Finding the Fourth Proportional to 12,280.44, 16,947.08 and 6,691.44

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Solution

The fourth proportional to 12,280.44, 16,947.08 and 6,691.44 is: 9,234.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,280.44 : 16,947.08 = 6,691.44 : x
  2. Step 2: Convert to fraction form
    12,280.44/16,947.08 = 6,691.44/x
  3. Step 3: Cross multiply
    12,280.44x = 16,947.08 × 6,691.44
  4. Step 4: Simplify right side
    12,280.44x = 113,400,369.00
  5. Step 5: Solve for x
    x = 113,400,369.00/12,280.44
  6. Step 6: Final answer
    x = 9,234.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.