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Finding the Fourth Proportional to 12,797.69, 19,199 and 4,480.07

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Solution

The fourth proportional to 12,797.69, 19,199 and 4,480.07 is: 6,720.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,797.69 : 19,199 = 4,480.07 : x
  2. Step 2: Convert to fraction form
    12,797.69/19,199 = 4,480.07/x
  3. Step 3: Cross multiply
    12,797.69x = 19,199 × 4,480.07
  4. Step 4: Simplify right side
    12,797.69x = 86,012,863.93
  5. Step 5: Solve for x
    x = 86,012,863.93/12,797.69
  6. Step 6: Final answer
    x = 6,720.97

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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.