Home / 8,198.68-11,315.97-5,213.93

Finding the Fourth Proportional to 8,198.68, 11,315.97 and 5,213.93

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Solution

The fourth proportional to 8,198.68, 11,315.97 and 5,213.93 is: 7,196.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,198.68 : 11,315.97 = 5,213.93 : x
  2. Step 2: Convert to fraction form
    8,198.68/11,315.97 = 5,213.93/x
  3. Step 3: Cross multiply
    8,198.68x = 11,315.97 × 5,213.93
  4. Step 4: Simplify right side
    8,198.68x = 59,000,675.46
  5. Step 5: Solve for x
    x = 59,000,675.46/8,198.68
  6. Step 6: Final answer
    x = 7,196.36

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1.5x scale

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.