Home / 11,168.08-15,396.38-9,144.43

Finding the Fourth Proportional to 11,168.08, 15,396.38 and 9,144.43

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Solution

The fourth proportional to 11,168.08, 15,396.38 and 9,144.43 is: 12,606.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,168.08 : 15,396.38 = 9,144.43 : x
  2. Step 2: Convert to fraction form
    11,168.08/15,396.38 = 9,144.43/x
  3. Step 3: Cross multiply
    11,168.08x = 15,396.38 × 9,144.43
  4. Step 4: Simplify right side
    11,168.08x = 140,791,069.24
  5. Step 5: Solve for x
    x = 140,791,069.24/11,168.08
  6. Step 6: Final answer
    x = 12,606.56

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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.