Home / 13,243.57-19,958.35-11,928.97

Finding the Fourth Proportional to 13,243.57, 19,958.35 and 11,928.97

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Solution

The fourth proportional to 13,243.57, 19,958.35 and 11,928.97 is: 17,977.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,243.57 : 19,958.35 = 11,928.97 : x
  2. Step 2: Convert to fraction form
    13,243.57/19,958.35 = 11,928.97/x
  3. Step 3: Cross multiply
    13,243.57x = 19,958.35 × 11,928.97
  4. Step 4: Simplify right side
    13,243.57x = 238,082,558.40
  5. Step 5: Solve for x
    x = 238,082,558.40/13,243.57
  6. Step 6: Final answer
    x = 17,977.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.