Home / 10,097.75-15,149.09-3,172.25

Finding the Fourth Proportional to 10,097.75, 15,149.09 and 3,172.25

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Solution

The fourth proportional to 10,097.75, 15,149.09 and 3,172.25 is: 4,759.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,097.75 : 15,149.09 = 3,172.25 : x
  2. Step 2: Convert to fraction form
    10,097.75/15,149.09 = 3,172.25/x
  3. Step 3: Cross multiply
    10,097.75x = 15,149.09 × 3,172.25
  4. Step 4: Simplify right side
    10,097.75x = 48,056,684.89
  5. Step 5: Solve for x
    x = 48,056,684.89/10,097.75
  6. Step 6: Final answer
    x = 4,759.15

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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.