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Finding the Fourth Proportional to 8,982.64, 13,453.90 and 6,887.21

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Solution

The fourth proportional to 8,982.64, 13,453.90 and 6,887.21 is: 10,315.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.64 : 13,453.90 = 6,887.21 : x
  2. Step 2: Convert to fraction form
    8,982.64/13,453.90 = 6,887.21/x
  3. Step 3: Cross multiply
    8,982.64x = 13,453.90 × 6,887.21
  4. Step 4: Simplify right side
    8,982.64x = 92,659,834.62
  5. Step 5: Solve for x
    x = 92,659,834.62/8,982.64
  6. Step 6: Final answer
    x = 10,315.43

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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.