Home / 11,813.20-17,719.80-11,035.60

Finding the Fourth Proportional to 11,813.20, 17,719.80 and 11,035.60

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Solution

The fourth proportional to 11,813.20, 17,719.80 and 11,035.60 is: 16,553.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,813.20 : 17,719.80 = 11,035.60 : x
  2. Step 2: Convert to fraction form
    11,813.20/17,719.80 = 11,035.60/x
  3. Step 3: Cross multiply
    11,813.20x = 17,719.80 × 11,035.60
  4. Step 4: Simplify right side
    11,813.20x = 195,548,624.88
  5. Step 5: Solve for x
    x = 195,548,624.88/11,813.20
  6. Step 6: Final answer
    x = 16,553.40

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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.