Home / 11,380.22-17,056.44-5,138.62

Finding the Fourth Proportional to 11,380.22, 17,056.44 and 5,138.62

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Solution

The fourth proportional to 11,380.22, 17,056.44 and 5,138.62 is: 7,701.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,380.22 : 17,056.44 = 5,138.62 : x
  2. Step 2: Convert to fraction form
    11,380.22/17,056.44 = 5,138.62/x
  3. Step 3: Cross multiply
    11,380.22x = 17,056.44 × 5,138.62
  4. Step 4: Simplify right side
    11,380.22x = 87,646,563.71
  5. Step 5: Solve for x
    x = 87,646,563.71/11,380.22
  6. Step 6: Final answer
    x = 7,701.66

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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.