Home / 13,928.54-19,222.43-7,960.46

Finding the Fourth Proportional to 13,928.54, 19,222.43 and 7,960.46

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Solution

The fourth proportional to 13,928.54, 19,222.43 and 7,960.46 is: 10,986.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,928.54 : 19,222.43 = 7,960.46 : x
  2. Step 2: Convert to fraction form
    13,928.54/19,222.43 = 7,960.46/x
  3. Step 3: Cross multiply
    13,928.54x = 19,222.43 × 7,960.46
  4. Step 4: Simplify right side
    13,928.54x = 153,019,249.20
  5. Step 5: Solve for x
    x = 153,019,249.20/13,928.54
  6. Step 6: Final answer
    x = 10,986.03

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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.