Home / 12,137.33-18,189.07-9,173.34

Finding the Fourth Proportional to 12,137.33, 18,189.07 and 9,173.34

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Solution

The fourth proportional to 12,137.33, 18,189.07 and 9,173.34 is: 13,747.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,137.33 : 18,189.07 = 9,173.34 : x
  2. Step 2: Convert to fraction form
    12,137.33/18,189.07 = 9,173.34/x
  3. Step 3: Cross multiply
    12,137.33x = 18,189.07 × 9,173.34
  4. Step 4: Simplify right side
    12,137.33x = 166,854,523.39
  5. Step 5: Solve for x
    x = 166,854,523.39/12,137.33
  6. Step 6: Final answer
    x = 13,747.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.