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Finding the Fourth Proportional to 9,047.60, 13,542.60 and 6,455.60

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Solution

The fourth proportional to 9,047.60, 13,542.60 and 6,455.60 is: 9,662.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,047.60 : 13,542.60 = 6,455.60 : x
  2. Step 2: Convert to fraction form
    9,047.60/13,542.60 = 6,455.60/x
  3. Step 3: Cross multiply
    9,047.60x = 13,542.60 × 6,455.60
  4. Step 4: Simplify right side
    9,047.60x = 87,425,608.56
  5. Step 5: Solve for x
    x = 87,425,608.56/9,047.60
  6. Step 6: Final answer
    x = 9,662.85

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.