Home / 11,981.44-17,940.70-9,628.93

Finding the Fourth Proportional to 11,981.44, 17,940.70 and 9,628.93

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Solution

The fourth proportional to 11,981.44, 17,940.70 and 9,628.93 is: 14,418.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.44 : 17,940.70 = 9,628.93 : x
  2. Step 2: Convert to fraction form
    11,981.44/17,940.70 = 9,628.93/x
  3. Step 3: Cross multiply
    11,981.44x = 17,940.70 × 9,628.93
  4. Step 4: Simplify right side
    11,981.44x = 172,749,744.45
  5. Step 5: Solve for x
    x = 172,749,744.45/11,981.44
  6. Step 6: Final answer
    x = 14,418.11

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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.