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Finding the Fourth Proportional to 13,316.74, 18,377.16 and 7,348.41

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Solution

The fourth proportional to 13,316.74, 18,377.16 and 7,348.41 is: 10,140.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,316.74 : 18,377.16 = 7,348.41 : x
  2. Step 2: Convert to fraction form
    13,316.74/18,377.16 = 7,348.41/x
  3. Step 3: Cross multiply
    13,316.74x = 18,377.16 × 7,348.41
  4. Step 4: Simplify right side
    13,316.74x = 135,042,906.32
  5. Step 5: Solve for x
    x = 135,042,906.32/13,316.74
  6. Step 6: Final answer
    x = 10,140.84

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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.