Home / 8,653.20-12,976.00-3,385.43

Finding the Fourth Proportional to 8,653.20, 12,976.00 and 3,385.43

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Solution

The fourth proportional to 8,653.20, 12,976.00 and 3,385.43 is: 5,076.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,653.20 : 12,976.00 = 3,385.43 : x
  2. Step 2: Convert to fraction form
    8,653.20/12,976.00 = 3,385.43/x
  3. Step 3: Cross multiply
    8,653.20x = 12,976.00 × 3,385.43
  4. Step 4: Simplify right side
    8,653.20x = 43,929,315.00
  5. Step 5: Solve for x
    x = 43,929,315.00/8,653.20
  6. Step 6: Final answer
    x = 5,076.66

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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.