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Finding the Fourth Proportional to 13,605.01, 18,773.46 and 7,637.33

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Solution

The fourth proportional to 13,605.01, 18,773.46 and 7,637.33 is: 10,538.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,605.01 : 18,773.46 = 7,637.33 : x
  2. Step 2: Convert to fraction form
    13,605.01/18,773.46 = 7,637.33/x
  3. Step 3: Cross multiply
    13,605.01x = 18,773.46 × 7,637.33
  4. Step 4: Simplify right side
    13,605.01x = 143,379,184.84
  5. Step 5: Solve for x
    x = 143,379,184.84/13,605.01
  6. Step 6: Final answer
    x = 10,538.71

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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.