Home / 12,418.67-17,136.72-7,313.37

Finding the Fourth Proportional to 12,418.67, 17,136.72 and 7,313.37

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Solution

The fourth proportional to 12,418.67, 17,136.72 and 7,313.37 is: 10,091.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,418.67 : 17,136.72 = 7,313.37 : x
  2. Step 2: Convert to fraction form
    12,418.67/17,136.72 = 7,313.37/x
  3. Step 3: Cross multiply
    12,418.67x = 17,136.72 × 7,313.37
  4. Step 4: Simplify right side
    12,418.67x = 125,327,173.95
  5. Step 5: Solve for x
    x = 125,327,173.95/12,418.67
  6. Step 6: Final answer
    x = 10,091.84

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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.