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Finding the Fourth Proportional to 8,246.79, 12,372 and 4,089.06

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Solution

The fourth proportional to 8,246.79, 12,372 and 4,089.06 is: 6,134.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,246.79 : 12,372 = 4,089.06 : x
  2. Step 2: Convert to fraction form
    8,246.79/12,372 = 4,089.06/x
  3. Step 3: Cross multiply
    8,246.79x = 12,372 × 4,089.06
  4. Step 4: Simplify right side
    8,246.79x = 50,589,850.32
  5. Step 5: Solve for x
    x = 50,589,850.32/8,246.79
  6. Step 6: Final answer
    x = 6,134.49

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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.