Home / 13,955.26-19,257.92-7,986.54

Finding the Fourth Proportional to 13,955.26, 19,257.92 and 7,986.54

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Solution

The fourth proportional to 13,955.26, 19,257.92 and 7,986.54 is: 11,021.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.26 : 19,257.92 = 7,986.54 : x
  2. Step 2: Convert to fraction form
    13,955.26/19,257.92 = 7,986.54/x
  3. Step 3: Cross multiply
    13,955.26x = 19,257.92 × 7,986.54
  4. Step 4: Simplify right side
    13,955.26x = 153,804,148.40
  5. Step 5: Solve for x
    x = 153,804,148.40/13,955.26
  6. Step 6: Final answer
    x = 11,021.23

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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.