Home / 11,981.90-17,975.86-4,586.94

Finding the Fourth Proportional to 11,981.90, 17,975.86 and 4,586.94

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Solution

The fourth proportional to 11,981.90, 17,975.86 and 4,586.94 is: 6,881.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.90 : 17,975.86 = 4,586.94 : x
  2. Step 2: Convert to fraction form
    11,981.90/17,975.86 = 4,586.94/x
  3. Step 3: Cross multiply
    11,981.90x = 17,975.86 × 4,586.94
  4. Step 4: Simplify right side
    11,981.90x = 82,454,179.80
  5. Step 5: Solve for x
    x = 82,454,179.80/11,981.90
  6. Step 6: Final answer
    x = 6,881.56

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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.