Home / 12,173.96-18,237.29-8,001.38

Finding the Fourth Proportional to 12,173.96, 18,237.29 and 8,001.38

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Solution

The fourth proportional to 12,173.96, 18,237.29 and 8,001.38 is: 11,986.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,173.96 : 18,237.29 = 8,001.38 : x
  2. Step 2: Convert to fraction form
    12,173.96/18,237.29 = 8,001.38/x
  3. Step 3: Cross multiply
    12,173.96x = 18,237.29 × 8,001.38
  4. Step 4: Simplify right side
    12,173.96x = 145,923,493.05
  5. Step 5: Solve for x
    x = 145,923,493.05/12,173.96
  6. Step 6: Final answer
    x = 11,986.52

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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.