Home / 11,721.99-16,176.35-6,416.83

Finding the Fourth Proportional to 11,721.99, 16,176.35 and 6,416.83

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Solution

The fourth proportional to 11,721.99, 16,176.35 and 6,416.83 is: 8,855.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.99 : 16,176.35 = 6,416.83 : x
  2. Step 2: Convert to fraction form
    11,721.99/16,176.35 = 6,416.83/x
  3. Step 3: Cross multiply
    11,721.99x = 16,176.35 × 6,416.83
  4. Step 4: Simplify right side
    11,721.99x = 103,800,887.97
  5. Step 5: Solve for x
    x = 103,800,887.97/11,721.99
  6. Step 6: Final answer
    x = 8,855.23

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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.