Home / 8,109.67-11,185.44-6,199.81

Finding the Fourth Proportional to 8,109.67, 11,185.44 and 6,199.81

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Solution

The fourth proportional to 8,109.67, 11,185.44 and 6,199.81 is: 8,551.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.67 : 11,185.44 = 6,199.81 : x
  2. Step 2: Convert to fraction form
    8,109.67/11,185.44 = 6,199.81/x
  3. Step 3: Cross multiply
    8,109.67x = 11,185.44 × 6,199.81
  4. Step 4: Simplify right side
    8,109.67x = 69,347,515.84
  5. Step 5: Solve for x
    x = 69,347,515.84/8,109.67
  6. Step 6: Final answer
    x = 8,551.21

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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.