Home / 11,271.56-16,910.10-3,876.12

Finding the Fourth Proportional to 11,271.56, 16,910.10 and 3,876.12

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Solution

The fourth proportional to 11,271.56, 16,910.10 and 3,876.12 is: 5,815.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,271.56 : 16,910.10 = 3,876.12 : x
  2. Step 2: Convert to fraction form
    11,271.56/16,910.10 = 3,876.12/x
  3. Step 3: Cross multiply
    11,271.56x = 16,910.10 × 3,876.12
  4. Step 4: Simplify right side
    11,271.56x = 65,545,576.81
  5. Step 5: Solve for x
    x = 65,545,576.81/11,271.56
  6. Step 6: Final answer
    x = 5,815.13

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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.