Home / 13,173.82-18,180.14-7,205.87

Finding the Fourth Proportional to 13,173.82, 18,180.14 and 7,205.87

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Solution

The fourth proportional to 13,173.82, 18,180.14 and 7,205.87 is: 9,944.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,173.82 : 18,180.14 = 7,205.87 : x
  2. Step 2: Convert to fraction form
    13,173.82/18,180.14 = 7,205.87/x
  3. Step 3: Cross multiply
    13,173.82x = 18,180.14 × 7,205.87
  4. Step 4: Simplify right side
    13,173.82x = 131,003,725.42
  5. Step 5: Solve for x
    x = 131,003,725.42/13,173.82
  6. Step 6: Final answer
    x = 9,944.25

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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.