Home / 13,769.28-18,991.94-8,467.02

Finding the Fourth Proportional to 13,769.28, 18,991.94 and 8,467.02

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Solution

The fourth proportional to 13,769.28, 18,991.94 and 8,467.02 is: 11,678.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,769.28 : 18,991.94 = 8,467.02 : x
  2. Step 2: Convert to fraction form
    13,769.28/18,991.94 = 8,467.02/x
  3. Step 3: Cross multiply
    13,769.28x = 18,991.94 × 8,467.02
  4. Step 4: Simplify right side
    13,769.28x = 160,805,093.48
  5. Step 5: Solve for x
    x = 160,805,093.48/13,769.28
  6. Step 6: Final answer
    x = 11,678.54

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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.