Home / 11,128.12-16,693.83-3,230.70

Finding the Fourth Proportional to 11,128.12, 16,693.83 and 3,230.70

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Solution

The fourth proportional to 11,128.12, 16,693.83 and 3,230.70 is: 4,846.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,128.12 : 16,693.83 = 3,230.70 : x
  2. Step 2: Convert to fraction form
    11,128.12/16,693.83 = 3,230.70/x
  3. Step 3: Cross multiply
    11,128.12x = 16,693.83 × 3,230.70
  4. Step 4: Simplify right side
    11,128.12x = 53,932,764.41
  5. Step 5: Solve for x
    x = 53,932,764.41/11,128.12
  6. Step 6: Final answer
    x = 4,846.53

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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.