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Finding the Fourth Proportional to 12,183.56, 16,813.62 and 7,470.44

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Solution

The fourth proportional to 12,183.56, 16,813.62 and 7,470.44 is: 10,309.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,183.56 : 16,813.62 = 7,470.44 : x
  2. Step 2: Convert to fraction form
    12,183.56/16,813.62 = 7,470.44/x
  3. Step 3: Cross multiply
    12,183.56x = 16,813.62 × 7,470.44
  4. Step 4: Simplify right side
    12,183.56x = 125,605,139.39
  5. Step 5: Solve for x
    x = 125,605,139.39/12,183.56
  6. Step 6: Final answer
    x = 10,309.40

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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.