Home / 13,634.21-18,816.11-8,528.94

Finding the Fourth Proportional to 13,634.21, 18,816.11 and 8,528.94

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Solution

The fourth proportional to 13,634.21, 18,816.11 and 8,528.94 is: 11,770.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,634.21 : 18,816.11 = 8,528.94 : x
  2. Step 2: Convert to fraction form
    13,634.21/18,816.11 = 8,528.94/x
  3. Step 3: Cross multiply
    13,634.21x = 18,816.11 × 8,528.94
  4. Step 4: Simplify right side
    13,634.21x = 160,481,379.14
  5. Step 5: Solve for x
    x = 160,481,379.14/13,634.21
  6. Step 6: Final answer
    x = 11,770.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.