Home / 11,721.89-16,176.17-6,344.33

Finding the Fourth Proportional to 11,721.89, 16,176.17 and 6,344.33

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Solution

The fourth proportional to 11,721.89, 16,176.17 and 6,344.33 is: 8,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.89 : 16,176.17 = 6,344.33 : x
  2. Step 2: Convert to fraction form
    11,721.89/16,176.17 = 6,344.33/x
  3. Step 3: Cross multiply
    11,721.89x = 16,176.17 × 6,344.33
  4. Step 4: Simplify right side
    11,721.89x = 102,626,928.89
  5. Step 5: Solve for x
    x = 102,626,928.89/11,721.89
  6. Step 6: Final answer
    x = 8,755.16

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.