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Finding the Fourth Proportional to 9,963.52, 13,749.60 and 5,771.68

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Solution

The fourth proportional to 9,963.52, 13,749.60 and 5,771.68 is: 7,964.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,963.52 : 13,749.60 = 5,771.68 : x
  2. Step 2: Convert to fraction form
    9,963.52/13,749.60 = 5,771.68/x
  3. Step 3: Cross multiply
    9,963.52x = 13,749.60 × 5,771.68
  4. Step 4: Simplify right side
    9,963.52x = 79,358,291.33
  5. Step 5: Solve for x
    x = 79,358,291.33/9,963.52
  6. Step 6: Final answer
    x = 7,964.89

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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.