Home / 12,928.09-17,839.47-7,263.49

Finding the Fourth Proportional to 12,928.09, 17,839.47 and 7,263.49

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Solution

The fourth proportional to 12,928.09, 17,839.47 and 7,263.49 is: 10,022.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.09 : 17,839.47 = 7,263.49 : x
  2. Step 2: Convert to fraction form
    12,928.09/17,839.47 = 7,263.49/x
  3. Step 3: Cross multiply
    12,928.09x = 17,839.47 × 7,263.49
  4. Step 4: Simplify right side
    12,928.09x = 129,576,811.95
  5. Step 5: Solve for x
    x = 129,576,811.95/12,928.09
  6. Step 6: Final answer
    x = 10,022.89

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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.