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Finding the Fourth Proportional to 13,880.62, 19,149.87 and 8,843.94

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Solution

The fourth proportional to 13,880.62, 19,149.87 and 8,843.94 is: 12,201.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,880.62 : 19,149.87 = 8,843.94 : x
  2. Step 2: Convert to fraction form
    13,880.62/19,149.87 = 8,843.94/x
  3. Step 3: Cross multiply
    13,880.62x = 19,149.87 × 8,843.94
  4. Step 4: Simplify right side
    13,880.62x = 169,360,301.29
  5. Step 5: Solve for x
    x = 169,360,301.29/13,880.62
  6. Step 6: Final answer
    x = 12,201.21

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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.