Home / 16,872.14-25,310.63-5,186.34

Finding the Fourth Proportional to 16,872.14, 25,310.63 and 5,186.34

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Solution

The fourth proportional to 16,872.14, 25,310.63 and 5,186.34 is: 7,780.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,872.14 : 25,310.63 = 5,186.34 : x
  2. Step 2: Convert to fraction form
    16,872.14/25,310.63 = 5,186.34/x
  3. Step 3: Cross multiply
    16,872.14x = 25,310.63 × 5,186.34
  4. Step 4: Simplify right side
    16,872.14x = 131,269,532.79
  5. Step 5: Solve for x
    x = 131,269,532.79/16,872.14
  6. Step 6: Final answer
    x = 7,780.25

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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.