Home / 13,379.58-18,462.33-7,409.75

Finding the Fourth Proportional to 13,379.58, 18,462.33 and 7,409.75

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Solution

The fourth proportional to 13,379.58, 18,462.33 and 7,409.75 is: 10,224.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,379.58 : 18,462.33 = 7,409.75 : x
  2. Step 2: Convert to fraction form
    13,379.58/18,462.33 = 7,409.75/x
  3. Step 3: Cross multiply
    13,379.58x = 18,462.33 × 7,409.75
  4. Step 4: Simplify right side
    13,379.58x = 136,801,249.72
  5. Step 5: Solve for x
    x = 136,801,249.72/13,379.58
  6. Step 6: Final answer
    x = 10,224.63

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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.