Home / 13,991.67-19,302.44-8,021.97

Finding the Fourth Proportional to 13,991.67, 19,302.44 and 8,021.97

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Solution

The fourth proportional to 13,991.67, 19,302.44 and 8,021.97 is: 11,066.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.67 : 19,302.44 = 8,021.97 : x
  2. Step 2: Convert to fraction form
    13,991.67/19,302.44 = 8,021.97/x
  3. Step 3: Cross multiply
    13,991.67x = 19,302.44 × 8,021.97
  4. Step 4: Simplify right side
    13,991.67x = 154,843,554.50
  5. Step 5: Solve for x
    x = 154,843,554.50/13,991.67
  6. Step 6: Final answer
    x = 11,066.84

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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.