Home / 11,992.05-17,981.91-6,450.08

Finding the Fourth Proportional to 11,992.05, 17,981.91 and 6,450.08

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Solution

The fourth proportional to 11,992.05, 17,981.91 and 6,450.08 is: 9,671.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,992.05 : 17,981.91 = 6,450.08 : x
  2. Step 2: Convert to fraction form
    11,992.05/17,981.91 = 6,450.08/x
  3. Step 3: Cross multiply
    11,992.05x = 17,981.91 × 6,450.08
  4. Step 4: Simplify right side
    11,992.05x = 115,984,668.14
  5. Step 5: Solve for x
    x = 115,984,668.14/11,992.05
  6. Step 6: Final answer
    x = 9,671.80

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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.