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Finding the Fourth Proportional to 11,118.80, 16,645.80 and 10,794.80

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Solution

The fourth proportional to 11,118.80, 16,645.80 and 10,794.80 is: 16,160.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,118.80 : 16,645.80 = 10,794.80 : x
  2. Step 2: Convert to fraction form
    11,118.80/16,645.80 = 10,794.80/x
  3. Step 3: Cross multiply
    11,118.80x = 16,645.80 × 10,794.80
  4. Step 4: Simplify right side
    11,118.80x = 179,688,081.84
  5. Step 5: Solve for x
    x = 179,688,081.84/11,118.80
  6. Step 6: Final answer
    x = 16,160.74

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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.