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Finding the Fourth Proportional to 13,758.48, 20,544.48 and 10,803.60

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Solution

The fourth proportional to 13,758.48, 20,544.48 and 10,803.60 is: 16,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,758.48 : 20,544.48 = 10,803.60 : x
  2. Step 2: Convert to fraction form
    13,758.48/20,544.48 = 10,803.60/x
  3. Step 3: Cross multiply
    13,758.48x = 20,544.48 × 10,803.60
  4. Step 4: Simplify right side
    13,758.48x = 221,954,344.13
  5. Step 5: Solve for x
    x = 221,954,344.13/13,758.48
  6. Step 6: Final answer
    x = 16,132.18

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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.