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Finding the Fourth Proportional to 11,165.60, 16,724.10 and 9,707.60

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Solution

The fourth proportional to 11,165.60, 16,724.10 and 9,707.60 is: 14,540.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,165.60 : 16,724.10 = 9,707.60 : x
  2. Step 2: Convert to fraction form
    11,165.60/16,724.10 = 9,707.60/x
  3. Step 3: Cross multiply
    11,165.60x = 16,724.10 × 9,707.60
  4. Step 4: Simplify right side
    11,165.60x = 162,350,873.16
  5. Step 5: Solve for x
    x = 162,350,873.16/11,165.60
  6. Step 6: Final answer
    x = 14,540.27

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.