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Finding the Fourth Proportional to 10,828.60, 16,218.60 and 8,884.60

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Solution

The fourth proportional to 10,828.60, 16,218.60 and 8,884.60 is: 13,306.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,828.60 : 16,218.60 = 8,884.60 : x
  2. Step 2: Convert to fraction form
    10,828.60/16,218.60 = 8,884.60/x
  3. Step 3: Cross multiply
    10,828.60x = 16,218.60 × 8,884.60
  4. Step 4: Simplify right side
    10,828.60x = 144,095,773.56
  5. Step 5: Solve for x
    x = 144,095,773.56/10,828.60
  6. Step 6: Final answer
    x = 13,306.96

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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.