Home / 8,768.20-12,100.21-4,789.43

Finding the Fourth Proportional to 8,768.20, 12,100.21 and 4,789.43

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Solution

The fourth proportional to 8,768.20, 12,100.21 and 4,789.43 is: 6,609.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,768.20 : 12,100.21 = 4,789.43 : x
  2. Step 2: Convert to fraction form
    8,768.20/12,100.21 = 4,789.43/x
  3. Step 3: Cross multiply
    8,768.20x = 12,100.21 × 4,789.43
  4. Step 4: Simplify right side
    8,768.20x = 57,953,108.78
  5. Step 5: Solve for x
    x = 57,953,108.78/8,768.20
  6. Step 6: Final answer
    x = 6,609.46

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.