Home / 11,981.07-17,975.07-4,959.79

Finding the Fourth Proportional to 11,981.07, 17,975.07 and 4,959.79

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Solution

The fourth proportional to 11,981.07, 17,975.07 and 4,959.79 is: 7,441.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,981.07 : 17,975.07 = 4,959.79 : x
  2. Step 2: Convert to fraction form
    11,981.07/17,975.07 = 4,959.79/x
  3. Step 3: Cross multiply
    11,981.07x = 17,975.07 × 4,959.79
  4. Step 4: Simplify right side
    11,981.07x = 89,152,572.44
  5. Step 5: Solve for x
    x = 89,152,572.44/11,981.07
  6. Step 6: Final answer
    x = 7,441.12

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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.