Home / 12,928.26-17,839.95-7,262.70

Finding the Fourth Proportional to 12,928.26, 17,839.95 and 7,262.70

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Solution

The fourth proportional to 12,928.26, 17,839.95 and 7,262.70 is: 10,021.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,928.26 : 17,839.95 = 7,262.70 : x
  2. Step 2: Convert to fraction form
    12,928.26/17,839.95 = 7,262.70/x
  3. Step 3: Cross multiply
    12,928.26x = 17,839.95 × 7,262.70
  4. Step 4: Simplify right side
    12,928.26x = 129,566,204.87
  5. Step 5: Solve for x
    x = 129,566,204.87/12,928.26
  6. Step 6: Final answer
    x = 10,021.94

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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.