Home / 13,174.09-18,180.11-7,205.87

Finding the Fourth Proportional to 13,174.09, 18,180.11 and 7,205.87

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Solution

The fourth proportional to 13,174.09, 18,180.11 and 7,205.87 is: 9,944.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.09 : 18,180.11 = 7,205.87 : x
  2. Step 2: Convert to fraction form
    13,174.09/18,180.11 = 7,205.87/x
  3. Step 3: Cross multiply
    13,174.09x = 18,180.11 × 7,205.87
  4. Step 4: Simplify right side
    13,174.09x = 131,003,473.22
  5. Step 5: Solve for x
    x = 131,003,473.22/13,174.09
  6. Step 6: Final answer
    x = 9,944.03

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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.