Home / 13,338.26-18,408.10-7,370.34

Finding the Fourth Proportional to 13,338.26, 18,408.10 and 7,370.34

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Solution

The fourth proportional to 13,338.26, 18,408.10 and 7,370.34 is: 10,171.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,338.26 : 18,408.10 = 7,370.34 : x
  2. Step 2: Convert to fraction form
    13,338.26/18,408.10 = 7,370.34/x
  3. Step 3: Cross multiply
    13,338.26x = 18,408.10 × 7,370.34
  4. Step 4: Simplify right side
    13,338.26x = 135,673,955.75
  5. Step 5: Solve for x
    x = 135,673,955.75/13,338.26
  6. Step 6: Final answer
    x = 10,171.79

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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.