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Finding the Fourth Proportional to 13,292.53, 18,342.92 and 7,986.33

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Solution

The fourth proportional to 13,292.53, 18,342.92 and 7,986.33 is: 11,020.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.53 : 18,342.92 = 7,986.33 : x
  2. Step 2: Convert to fraction form
    13,292.53/18,342.92 = 7,986.33/x
  3. Step 3: Cross multiply
    13,292.53x = 18,342.92 × 7,986.33
  4. Step 4: Simplify right side
    13,292.53x = 146,492,632.25
  5. Step 5: Solve for x
    x = 146,492,632.25/13,292.53
  6. Step 6: Final answer
    x = 11,020.68

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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.