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Finding the Fourth Proportional to 10,644.60, 16,020 and 8,025.60

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Solution

The fourth proportional to 10,644.60, 16,020 and 8,025.60 is: 12,078.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,644.60 : 16,020 = 8,025.60 : x
  2. Step 2: Convert to fraction form
    10,644.60/16,020 = 8,025.60/x
  3. Step 3: Cross multiply
    10,644.60x = 16,020 × 8,025.60
  4. Step 4: Simplify right side
    10,644.60x = 128,570,112
  5. Step 5: Solve for x
    x = 128,570,112/10,644.60
  6. Step 6: Final answer
    x = 12,078.44

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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.