Home / 9,147.44-12,621.99-5,168.02

Finding the Fourth Proportional to 9,147.44, 12,621.99 and 5,168.02

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Solution

The fourth proportional to 9,147.44, 12,621.99 and 5,168.02 is: 7,131.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.44 : 12,621.99 = 5,168.02 : x
  2. Step 2: Convert to fraction form
    9,147.44/12,621.99 = 5,168.02/x
  3. Step 3: Cross multiply
    9,147.44x = 12,621.99 × 5,168.02
  4. Step 4: Simplify right side
    9,147.44x = 65,230,696.76
  5. Step 5: Solve for x
    x = 65,230,696.76/9,147.44
  6. Step 6: Final answer
    x = 7,131.03

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.