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Finding the Fourth Proportional to 13,505.60, 20,258.40 and 10,049.60

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Solution

The fourth proportional to 13,505.60, 20,258.40 and 10,049.60 is: 15,074.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,505.60 : 20,258.40 = 10,049.60 : x
  2. Step 2: Convert to fraction form
    13,505.60/20,258.40 = 10,049.60/x
  3. Step 3: Cross multiply
    13,505.60x = 20,258.40 × 10,049.60
  4. Step 4: Simplify right side
    13,505.60x = 203,588,816.64
  5. Step 5: Solve for x
    x = 203,588,816.64/13,505.60
  6. Step 6: Final answer
    x = 15,074.40

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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.