Home / 10,747.62-16,118.37-4,172.40

Finding the Fourth Proportional to 10,747.62, 16,118.37 and 4,172.40

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Solution

The fourth proportional to 10,747.62, 16,118.37 and 4,172.40 is: 6,257.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,747.62 : 16,118.37 = 4,172.40 : x
  2. Step 2: Convert to fraction form
    10,747.62/16,118.37 = 4,172.40/x
  3. Step 3: Cross multiply
    10,747.62x = 16,118.37 × 4,172.40
  4. Step 4: Simplify right side
    10,747.62x = 67,252,286.99
  5. Step 5: Solve for x
    x = 67,252,286.99/10,747.62
  6. Step 6: Final answer
    x = 6,257.41

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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.