Home / 11,518.21-17,282.19-6,847.15

Finding the Fourth Proportional to 11,518.21, 17,282.19 and 6,847.15

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Solution

The fourth proportional to 11,518.21, 17,282.19 and 6,847.15 is: 10,273.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,518.21 : 17,282.19 = 6,847.15 : x
  2. Step 2: Convert to fraction form
    11,518.21/17,282.19 = 6,847.15/x
  3. Step 3: Cross multiply
    11,518.21x = 17,282.19 × 6,847.15
  4. Step 4: Simplify right side
    11,518.21x = 118,333,747.26
  5. Step 5: Solve for x
    x = 118,333,747.26/11,518.21
  6. Step 6: Final answer
    x = 10,273.62

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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.