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Finding the Fourth Proportional to 8,982.86, 13,453.38 and 8,671.41

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Solution

The fourth proportional to 8,982.86, 13,453.38 and 8,671.41 is: 12,986.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,982.86 : 13,453.38 = 8,671.41 : x
  2. Step 2: Convert to fraction form
    8,982.86/13,453.38 = 8,671.41/x
  3. Step 3: Cross multiply
    8,982.86x = 13,453.38 × 8,671.41
  4. Step 4: Simplify right side
    8,982.86x = 116,659,773.87
  5. Step 5: Solve for x
    x = 116,659,773.87/8,982.86
  6. Step 6: Final answer
    x = 12,986.94

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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.