Home / 12,007.80-17,997.30-6,161.40

Finding the Fourth Proportional to 12,007.80, 17,997.30 and 6,161.40

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Solution

The fourth proportional to 12,007.80, 17,997.30 and 6,161.40 is: 9,234.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,007.80 : 17,997.30 = 6,161.40 : x
  2. Step 2: Convert to fraction form
    12,007.80/17,997.30 = 6,161.40/x
  3. Step 3: Cross multiply
    12,007.80x = 17,997.30 × 6,161.40
  4. Step 4: Simplify right side
    12,007.80x = 110,888,564.22
  5. Step 5: Solve for x
    x = 110,888,564.22/12,007.80
  6. Step 6: Final answer
    x = 9,234.71

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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.