Home / 13,455.32-20,183.10-11,106.14

Finding the Fourth Proportional to 13,455.32, 20,183.10 and 11,106.14

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Solution

The fourth proportional to 13,455.32, 20,183.10 and 11,106.14 is: 16,659.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,455.32 : 20,183.10 = 11,106.14 : x
  2. Step 2: Convert to fraction form
    13,455.32/20,183.10 = 11,106.14/x
  3. Step 3: Cross multiply
    13,455.32x = 20,183.10 × 11,106.14
  4. Step 4: Simplify right side
    13,455.32x = 224,156,334.23
  5. Step 5: Solve for x
    x = 224,156,334.23/13,455.32
  6. Step 6: Final answer
    x = 16,659.31

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1.5x scale

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.