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Finding the Fourth Proportional to 13,300.19, 18,361.76 and 8,830.06

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Solution

The fourth proportional to 13,300.19, 18,361.76 and 8,830.06 is: 12,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,300.19 : 18,361.76 = 8,830.06 : x
  2. Step 2: Convert to fraction form
    13,300.19/18,361.76 = 8,830.06/x
  3. Step 3: Cross multiply
    13,300.19x = 18,361.76 × 8,830.06
  4. Step 4: Simplify right side
    13,300.19x = 162,135,418.68
  5. Step 5: Solve for x
    x = 162,135,418.68/13,300.19
  6. Step 6: Final answer
    x = 12,190.46

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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.