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Finding the Fourth Proportional to 13,197.04, 18,213.60 and 7,608.08

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Solution

The fourth proportional to 13,197.04, 18,213.60 and 7,608.08 is: 10,500.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,197.04 : 18,213.60 = 7,608.08 : x
  2. Step 2: Convert to fraction form
    13,197.04/18,213.60 = 7,608.08/x
  3. Step 3: Cross multiply
    13,197.04x = 18,213.60 × 7,608.08
  4. Step 4: Simplify right side
    13,197.04x = 138,570,525.89
  5. Step 5: Solve for x
    x = 138,570,525.89/13,197.04
  6. Step 6: Final answer
    x = 10,500.12

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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.