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Finding the Fourth Proportional to 13,394.34, 18,484.16 and 7,344.59

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Solution

The fourth proportional to 13,394.34, 18,484.16 and 7,344.59 is: 10,135.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,394.34 : 18,484.16 = 7,344.59 : x
  2. Step 2: Convert to fraction form
    13,394.34/18,484.16 = 7,344.59/x
  3. Step 3: Cross multiply
    13,394.34x = 18,484.16 × 7,344.59
  4. Step 4: Simplify right side
    13,394.34x = 135,758,447.55
  5. Step 5: Solve for x
    x = 135,758,447.55/13,394.34
  6. Step 6: Final answer
    x = 10,135.51

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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.