Home / 8,163.30-11,271.69-6,271.89

Finding the Fourth Proportional to 8,163.30, 11,271.69 and 6,271.89

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Solution

The fourth proportional to 8,163.30, 11,271.69 and 6,271.89 is: 8,660.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,163.30 : 11,271.69 = 6,271.89 : x
  2. Step 2: Convert to fraction form
    8,163.30/11,271.69 = 6,271.89/x
  3. Step 3: Cross multiply
    8,163.30x = 11,271.69 × 6,271.89
  4. Step 4: Simplify right side
    8,163.30x = 70,694,799.79
  5. Step 5: Solve for x
    x = 70,694,799.79/8,163.30
  6. Step 6: Final answer
    x = 8,660.08

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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.