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Finding the Fourth Proportional to 13,393.44, 20,052.84 and 6,805.44

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Solution

The fourth proportional to 13,393.44, 20,052.84 and 6,805.44 is: 10,189.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,393.44 : 20,052.84 = 6,805.44 : x
  2. Step 2: Convert to fraction form
    13,393.44/20,052.84 = 6,805.44/x
  3. Step 3: Cross multiply
    13,393.44x = 20,052.84 × 6,805.44
  4. Step 4: Simplify right side
    13,393.44x = 136,468,399.45
  5. Step 5: Solve for x
    x = 136,468,399.45/13,393.44
  6. Step 6: Final answer
    x = 10,189.20

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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.