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Finding the Fourth Proportional to 8,268.76, 12,408.54 and 7,601.32

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Solution

The fourth proportional to 8,268.76, 12,408.54 and 7,601.32 is: 11,406.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,268.76 : 12,408.54 = 7,601.32 : x
  2. Step 2: Convert to fraction form
    8,268.76/12,408.54 = 7,601.32/x
  3. Step 3: Cross multiply
    8,268.76x = 12,408.54 × 7,601.32
  4. Step 4: Simplify right side
    8,268.76x = 94,321,283.27
  5. Step 5: Solve for x
    x = 94,321,283.27/8,268.76
  6. Step 6: Final answer
    x = 11,406.94

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1.5x scale

Why These Related Problems?

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