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Finding the Fourth Proportional to 13,518.11, 18,653.15 and 7,549.02

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Solution

The fourth proportional to 13,518.11, 18,653.15 and 7,549.02 is: 10,416.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518.11 : 18,653.15 = 7,549.02 : x
  2. Step 2: Convert to fraction form
    13,518.11/18,653.15 = 7,549.02/x
  3. Step 3: Cross multiply
    13,518.11x = 18,653.15 × 7,549.02
  4. Step 4: Simplify right side
    13,518.11x = 140,813,021.29
  5. Step 5: Solve for x
    x = 140,813,021.29/13,518.11
  6. Step 6: Final answer
    x = 10,416.62

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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.