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Finding the Fourth Proportional to 8,786.98, 13,182.22 and 3,240.35

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Solution

The fourth proportional to 8,786.98, 13,182.22 and 3,240.35 is: 4,861.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,786.98 : 13,182.22 = 3,240.35 : x
  2. Step 2: Convert to fraction form
    8,786.98/13,182.22 = 3,240.35/x
  3. Step 3: Cross multiply
    8,786.98x = 13,182.22 × 3,240.35
  4. Step 4: Simplify right side
    8,786.98x = 42,714,940.67
  5. Step 5: Solve for x
    x = 42,714,940.67/8,786.98
  6. Step 6: Final answer
    x = 4,861.17

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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.