Home / 9,396.14-12,966.21-5,147.22

Finding the Fourth Proportional to 9,396.14, 12,966.21 and 5,147.22

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Solution

The fourth proportional to 9,396.14, 12,966.21 and 5,147.22 is: 7,102.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,396.14 : 12,966.21 = 5,147.22 : x
  2. Step 2: Convert to fraction form
    9,396.14/12,966.21 = 5,147.22/x
  3. Step 3: Cross multiply
    9,396.14x = 12,966.21 × 5,147.22
  4. Step 4: Simplify right side
    9,396.14x = 66,739,935.44
  5. Step 5: Solve for x
    x = 66,739,935.44/9,396.14
  6. Step 6: Final answer
    x = 7,102.91

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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.