Home / 11,271.91-16,908.25-3,876.31

Finding the Fourth Proportional to 11,271.91, 16,908.25 and 3,876.31

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Solution

The fourth proportional to 11,271.91, 16,908.25 and 3,876.31 is: 5,814.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.91 : 16,908.25 = 3,876.31 : x
  2. Step 2: Convert to fraction form
    11,271.91/16,908.25 = 3,876.31/x
  3. Step 3: Cross multiply
    11,271.91x = 16,908.25 × 3,876.31
  4. Step 4: Simplify right side
    11,271.91x = 65,541,534.02
  5. Step 5: Solve for x
    x = 65,541,534.02/11,271.91
  6. Step 6: Final answer
    x = 5,814.59

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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.