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Finding the Fourth Proportional to 8,507.28, 11,724.12 and 6,145.32

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Solution

The fourth proportional to 8,507.28, 11,724.12 and 6,145.32 is: 8,469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,507.28 : 11,724.12 = 6,145.32 : x
  2. Step 2: Convert to fraction form
    8,507.28/11,724.12 = 6,145.32/x
  3. Step 3: Cross multiply
    8,507.28x = 11,724.12 × 6,145.32
  4. Step 4: Simplify right side
    8,507.28x = 72,048,469.12
  5. Step 5: Solve for x
    x = 72,048,469.12/8,507.28
  6. Step 6: Final answer
    x = 8,469.04

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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.