Home / 10,721.26-16,076.41-4,479.57

Finding the Fourth Proportional to 10,721.26, 16,076.41 and 4,479.57

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Solution

The fourth proportional to 10,721.26, 16,076.41 and 4,479.57 is: 6,717.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,721.26 : 16,076.41 = 4,479.57 : x
  2. Step 2: Convert to fraction form
    10,721.26/16,076.41 = 4,479.57/x
  3. Step 3: Cross multiply
    10,721.26x = 16,076.41 × 4,479.57
  4. Step 4: Simplify right side
    10,721.26x = 72,015,392.74
  5. Step 5: Solve for x
    x = 72,015,392.74/10,721.26
  6. Step 6: Final answer
    x = 6,717.06

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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.