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Finding the Fourth Proportional to 18,476.36, 25,499.40 and 10,517.30

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Solution

The fourth proportional to 18,476.36, 25,499.40 and 10,517.30 is: 14,515.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,476.36 : 25,499.40 = 10,517.30 : x
  2. Step 2: Convert to fraction form
    18,476.36/25,499.40 = 10,517.30/x
  3. Step 3: Cross multiply
    18,476.36x = 25,499.40 × 10,517.30
  4. Step 4: Simplify right side
    18,476.36x = 268,184,659.54
  5. Step 5: Solve for x
    x = 268,184,659.54/18,476.36
  6. Step 6: Final answer
    x = 14,515.02

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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.