Home / 13,164.28-19,662.35-11,912.94

Finding the Fourth Proportional to 13,164.28, 19,662.35 and 11,912.94

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Solution

The fourth proportional to 13,164.28, 19,662.35 and 11,912.94 is: 17,793.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,164.28 : 19,662.35 = 11,912.94 : x
  2. Step 2: Convert to fraction form
    13,164.28/19,662.35 = 11,912.94/x
  3. Step 3: Cross multiply
    13,164.28x = 19,662.35 × 11,912.94
  4. Step 4: Simplify right side
    13,164.28x = 234,236,395.81
  5. Step 5: Solve for x
    x = 234,236,395.81/13,164.28
  6. Step 6: Final answer
    x = 17,793.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.