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Finding the Fourth Proportional to 13,917.39, 20,877.03 and 5,597.40

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Solution

The fourth proportional to 13,917.39, 20,877.03 and 5,597.40 is: 8,396.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,917.39 : 20,877.03 = 5,597.40 : x
  2. Step 2: Convert to fraction form
    13,917.39/20,877.03 = 5,597.40/x
  3. Step 3: Cross multiply
    13,917.39x = 20,877.03 × 5,597.40
  4. Step 4: Simplify right side
    13,917.39x = 116,857,087.72
  5. Step 5: Solve for x
    x = 116,857,087.72/13,917.39
  6. Step 6: Final answer
    x = 8,396.48

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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.