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Finding the Fourth Proportional to 16,940.53, 25,400.51 and 7,578.80

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Solution

The fourth proportional to 16,940.53, 25,400.51 and 7,578.80 is: 11,363.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,940.53 : 25,400.51 = 7,578.80 : x
  2. Step 2: Convert to fraction form
    16,940.53/25,400.51 = 7,578.80/x
  3. Step 3: Cross multiply
    16,940.53x = 25,400.51 × 7,578.80
  4. Step 4: Simplify right side
    16,940.53x = 192,505,385.19
  5. Step 5: Solve for x
    x = 192,505,385.19/16,940.53
  6. Step 6: Final answer
    x = 11,363.60

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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.