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Finding the Fourth Proportional to 8,888.10, 12,266.55 and 5,704.80

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Solution

The fourth proportional to 8,888.10, 12,266.55 and 5,704.80 is: 7,873.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,888.10 : 12,266.55 = 5,704.80 : x
  2. Step 2: Convert to fraction form
    8,888.10/12,266.55 = 5,704.80/x
  3. Step 3: Cross multiply
    8,888.10x = 12,266.55 × 5,704.80
  4. Step 4: Simplify right side
    8,888.10x = 69,978,214.44
  5. Step 5: Solve for x
    x = 69,978,214.44/8,888.10
  6. Step 6: Final answer
    x = 7,873.25

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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.