Home / 11,163.42-15,388.38-8,801.46

Finding the Fourth Proportional to 11,163.42, 15,388.38 and 8,801.46

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Solution

The fourth proportional to 11,163.42, 15,388.38 and 8,801.46 is: 12,132.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,163.42 : 15,388.38 = 8,801.46 : x
  2. Step 2: Convert to fraction form
    11,163.42/15,388.38 = 8,801.46/x
  3. Step 3: Cross multiply
    11,163.42x = 15,388.38 × 8,801.46
  4. Step 4: Simplify right side
    11,163.42x = 135,440,211.03
  5. Step 5: Solve for x
    x = 135,440,211.03/11,163.42
  6. Step 6: Final answer
    x = 12,132.50

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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.