Home / 16,800.50-25,194.75-5,553.78

Finding the Fourth Proportional to 16,800.50, 25,194.75 and 5,553.78

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Solution

The fourth proportional to 16,800.50, 25,194.75 and 5,553.78 is: 8,328.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,800.50 : 25,194.75 = 5,553.78 : x
  2. Step 2: Convert to fraction form
    16,800.50/25,194.75 = 5,553.78/x
  3. Step 3: Cross multiply
    16,800.50x = 25,194.75 × 5,553.78
  4. Step 4: Simplify right side
    16,800.50x = 139,926,098.66
  5. Step 5: Solve for x
    x = 139,926,098.66/16,800.50
  6. Step 6: Final answer
    x = 8,328.69

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1.5x scale

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.