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Finding the Fourth Proportional to 10,884.60, 16,302.60 and 8,940.60

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Solution

The fourth proportional to 10,884.60, 16,302.60 and 8,940.60 is: 13,390.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,884.60 : 16,302.60 = 8,940.60 : x
  2. Step 2: Convert to fraction form
    10,884.60/16,302.60 = 8,940.60/x
  3. Step 3: Cross multiply
    10,884.60x = 16,302.60 × 8,940.60
  4. Step 4: Simplify right side
    10,884.60x = 145,755,025.56
  5. Step 5: Solve for x
    x = 145,755,025.56/10,884.60
  6. Step 6: Final answer
    x = 13,390.94

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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.