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Finding the Fourth Proportional to 11,835.11, 17,735.74 and 8,690.44

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Solution

The fourth proportional to 11,835.11, 17,735.74 and 8,690.44 is: 13,023.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,835.11 : 17,735.74 = 8,690.44 : x
  2. Step 2: Convert to fraction form
    11,835.11/17,735.74 = 8,690.44/x
  3. Step 3: Cross multiply
    11,835.11x = 17,735.74 × 8,690.44
  4. Step 4: Simplify right side
    11,835.11x = 154,131,318.26
  5. Step 5: Solve for x
    x = 154,131,318.26/11,835.11
  6. Step 6: Final answer
    x = 13,023.23

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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.