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Finding the Fourth Proportional to 12,568.97, 18,853.44 and 3,208.99

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Solution

The fourth proportional to 12,568.97, 18,853.44 and 3,208.99 is: 4,813.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,568.97 : 18,853.44 = 3,208.99 : x
  2. Step 2: Convert to fraction form
    12,568.97/18,853.44 = 3,208.99/x
  3. Step 3: Cross multiply
    12,568.97x = 18,853.44 × 3,208.99
  4. Step 4: Simplify right side
    12,568.97x = 60,500,495.86
  5. Step 5: Solve for x
    x = 60,500,495.86/12,568.97
  6. Step 6: Final answer
    x = 4,813.48

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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.