Home / 13,664.94-18,858.97-7,999.35

Finding the Fourth Proportional to 13,664.94, 18,858.97 and 7,999.35

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Solution

The fourth proportional to 13,664.94, 18,858.97 and 7,999.35 is: 11,039.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,664.94 : 18,858.97 = 7,999.35 : x
  2. Step 2: Convert to fraction form
    13,664.94/18,858.97 = 7,999.35/x
  3. Step 3: Cross multiply
    13,664.94x = 18,858.97 × 7,999.35
  4. Step 4: Simplify right side
    13,664.94x = 150,859,471.49
  5. Step 5: Solve for x
    x = 150,859,471.49/13,664.94
  6. Step 6: Final answer
    x = 11,039.89

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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.