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Finding the Fourth Proportional to 8,334.60, 12,499.02 and 2,786.64

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Solution

The fourth proportional to 8,334.60, 12,499.02 and 2,786.64 is: 4,179.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,334.60 : 12,499.02 = 2,786.64 : x
  2. Step 2: Convert to fraction form
    8,334.60/12,499.02 = 2,786.64/x
  3. Step 3: Cross multiply
    8,334.60x = 12,499.02 × 2,786.64
  4. Step 4: Simplify right side
    8,334.60x = 34,830,269.09
  5. Step 5: Solve for x
    x = 34,830,269.09/8,334.60
  6. Step 6: Final answer
    x = 4,179.00

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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.