Home / 12,008.37-18,012.55-6,161.25

Finding the Fourth Proportional to 12,008.37, 18,012.55 and 6,161.25

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Solution

The fourth proportional to 12,008.37, 18,012.55 and 6,161.25 is: 9,241.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,008.37 : 18,012.55 = 6,161.25 : x
  2. Step 2: Convert to fraction form
    12,008.37/18,012.55 = 6,161.25/x
  3. Step 3: Cross multiply
    12,008.37x = 18,012.55 × 6,161.25
  4. Step 4: Simplify right side
    12,008.37x = 110,979,823.69
  5. Step 5: Solve for x
    x = 110,979,823.69/12,008.37
  6. Step 6: Final answer
    x = 9,241.87

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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.