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Finding the Fourth Proportional to 8,333.36, 12,498.76 and 2,786.80

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Solution

The fourth proportional to 8,333.36, 12,498.76 and 2,786.80 is: 4,179.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,333.36 : 12,498.76 = 2,786.80 : x
  2. Step 2: Convert to fraction form
    8,333.36/12,498.76 = 2,786.80/x
  3. Step 3: Cross multiply
    8,333.36x = 12,498.76 × 2,786.80
  4. Step 4: Simplify right side
    8,333.36x = 34,831,544.37
  5. Step 5: Solve for x
    x = 34,831,544.37/8,333.36
  6. Step 6: Final answer
    x = 4,179.77

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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.