Home / 11,381.99-17,081.81-7,896.45

Finding the Fourth Proportional to 11,381.99, 17,081.81 and 7,896.45

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Solution

The fourth proportional to 11,381.99, 17,081.81 and 7,896.45 is: 11,850.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,381.99 : 17,081.81 = 7,896.45 : x
  2. Step 2: Convert to fraction form
    11,381.99/17,081.81 = 7,896.45/x
  3. Step 3: Cross multiply
    11,381.99x = 17,081.81 × 7,896.45
  4. Step 4: Simplify right side
    11,381.99x = 134,885,619.09
  5. Step 5: Solve for x
    x = 134,885,619.09/11,381.99
  6. Step 6: Final answer
    x = 11,850.80

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1.5x scale

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.