Home / 12,928.75-17,839.73-7,262.42

Finding the Fourth Proportional to 12,928.75, 17,839.73 and 7,262.42

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Solution

The fourth proportional to 12,928.75, 17,839.73 and 7,262.42 is: 10,021.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.75 : 17,839.73 = 7,262.42 : x
  2. Step 2: Convert to fraction form
    12,928.75/17,839.73 = 7,262.42/x
  3. Step 3: Cross multiply
    12,928.75x = 17,839.73 × 7,262.42
  4. Step 4: Simplify right side
    12,928.75x = 129,559,611.95
  5. Step 5: Solve for x
    x = 129,559,611.95/12,928.75
  6. Step 6: Final answer
    x = 10,021.05

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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.