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Finding the Fourth Proportional to 8,579.94, 12,877.14 and 3,389.46

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Solution

The fourth proportional to 8,579.94, 12,877.14 and 3,389.46 is: 5,087.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,579.94 : 12,877.14 = 3,389.46 : x
  2. Step 2: Convert to fraction form
    8,579.94/12,877.14 = 3,389.46/x
  3. Step 3: Cross multiply
    8,579.94x = 12,877.14 × 3,389.46
  4. Step 4: Simplify right side
    8,579.94x = 43,646,550.94
  5. Step 5: Solve for x
    x = 43,646,550.94/8,579.94
  6. Step 6: Final answer
    x = 5,087.05

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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.