Home / 13,408.73-18,505.20-7,441.56

Finding the Fourth Proportional to 13,408.73, 18,505.20 and 7,441.56

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Solution

The fourth proportional to 13,408.73, 18,505.20 and 7,441.56 is: 10,270.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,408.73 : 18,505.20 = 7,441.56 : x
  2. Step 2: Convert to fraction form
    13,408.73/18,505.20 = 7,441.56/x
  3. Step 3: Cross multiply
    13,408.73x = 18,505.20 × 7,441.56
  4. Step 4: Simplify right side
    13,408.73x = 137,707,556.11
  5. Step 5: Solve for x
    x = 137,707,556.11/13,408.73
  6. Step 6: Final answer
    x = 10,270.00

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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.