Home / 11,129.37-16,695.71-3,231.95

Finding the Fourth Proportional to 11,129.37, 16,695.71 and 3,231.95

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Solution

The fourth proportional to 11,129.37, 16,695.71 and 3,231.95 is: 4,848.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,129.37 : 16,695.71 = 3,231.95 : x
  2. Step 2: Convert to fraction form
    11,129.37/16,695.71 = 3,231.95/x
  3. Step 3: Cross multiply
    11,129.37x = 16,695.71 × 3,231.95
  4. Step 4: Simplify right side
    11,129.37x = 53,959,683.77
  5. Step 5: Solve for x
    x = 53,959,683.77/11,129.37
  6. Step 6: Final answer
    x = 4,848.40

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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.