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Finding the Fourth Proportional to 13,496.57, 18,626.09 and 7,528.25

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Solution

The fourth proportional to 13,496.57, 18,626.09 and 7,528.25 is: 10,389.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,496.57 : 18,626.09 = 7,528.25 : x
  2. Step 2: Convert to fraction form
    13,496.57/18,626.09 = 7,528.25/x
  3. Step 3: Cross multiply
    13,496.57x = 18,626.09 × 7,528.25
  4. Step 4: Simplify right side
    13,496.57x = 140,221,731.27
  5. Step 5: Solve for x
    x = 140,221,731.27/13,496.57
  6. Step 6: Final answer
    x = 10,389.44

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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.