Home / 13,991.33-19,305.74-8,693.33

Finding the Fourth Proportional to 13,991.33, 19,305.74 and 8,693.33

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Solution

The fourth proportional to 13,991.33, 19,305.74 and 8,693.33 is: 11,995.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,991.33 : 19,305.74 = 8,693.33 : x
  2. Step 2: Convert to fraction form
    13,991.33/19,305.74 = 8,693.33/x
  3. Step 3: Cross multiply
    13,991.33x = 19,305.74 × 8,693.33
  4. Step 4: Simplify right side
    13,991.33x = 167,831,093.92
  5. Step 5: Solve for x
    x = 167,831,093.92/13,991.33
  6. Step 6: Final answer
    x = 11,995.36

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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.