Home / 11,721.94-16,176.24-6,416.80

Finding the Fourth Proportional to 11,721.94, 16,176.24 and 6,416.80

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Solution

The fourth proportional to 11,721.94, 16,176.24 and 6,416.80 is: 8,855.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.94 : 16,176.24 = 6,416.80 : x
  2. Step 2: Convert to fraction form
    11,721.94/16,176.24 = 6,416.80/x
  3. Step 3: Cross multiply
    11,721.94x = 16,176.24 × 6,416.80
  4. Step 4: Simplify right side
    11,721.94x = 103,799,696.83
  5. Step 5: Solve for x
    x = 103,799,696.83/11,721.94
  6. Step 6: Final answer
    x = 8,855.16

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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.