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Finding the Fourth Proportional to 16,119.60, 22,245.60 and 9,404.16

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Solution

The fourth proportional to 16,119.60, 22,245.60 and 9,404.16 is: 12,978.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,119.60 : 22,245.60 = 9,404.16 : x
  2. Step 2: Convert to fraction form
    16,119.60/22,245.60 = 9,404.16/x
  3. Step 3: Cross multiply
    16,119.60x = 22,245.60 × 9,404.16
  4. Step 4: Simplify right side
    16,119.60x = 209,201,181.70
  5. Step 5: Solve for x
    x = 209,201,181.70/16,119.60
  6. Step 6: Final answer
    x = 12,978.06

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.