Home / 13,955.67-19,258.49-7,986.96

Finding the Fourth Proportional to 13,955.67, 19,258.49 and 7,986.96

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Solution

The fourth proportional to 13,955.67, 19,258.49 and 7,986.96 is: 11,021.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,955.67 : 19,258.49 = 7,986.96 : x
  2. Step 2: Convert to fraction form
    13,955.67/19,258.49 = 7,986.96/x
  3. Step 3: Cross multiply
    13,955.67x = 19,258.49 × 7,986.96
  4. Step 4: Simplify right side
    13,955.67x = 153,816,789.29
  5. Step 5: Solve for x
    x = 153,816,789.29/13,955.67
  6. Step 6: Final answer
    x = 11,021.81

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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.