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Finding the Fourth Proportional to 12,764.44, 17,613.36 and 7,455.40

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Solution

The fourth proportional to 12,764.44, 17,613.36 and 7,455.40 is: 10,287.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,764.44 : 17,613.36 = 7,455.40 : x
  2. Step 2: Convert to fraction form
    12,764.44/17,613.36 = 7,455.40/x
  3. Step 3: Cross multiply
    12,764.44x = 17,613.36 × 7,455.40
  4. Step 4: Simplify right side
    12,764.44x = 131,314,644.14
  5. Step 5: Solve for x
    x = 131,314,644.14/12,764.44
  6. Step 6: Final answer
    x = 10,287.54

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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.