Home / 16,219.22-22,382.49-9,145.60

Finding the Fourth Proportional to 16,219.22, 22,382.49 and 9,145.60

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Solution

The fourth proportional to 16,219.22, 22,382.49 and 9,145.60 is: 12,620.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,219.22 : 22,382.49 = 9,145.60 : x
  2. Step 2: Convert to fraction form
    16,219.22/22,382.49 = 9,145.60/x
  3. Step 3: Cross multiply
    16,219.22x = 22,382.49 × 9,145.60
  4. Step 4: Simplify right side
    16,219.22x = 204,701,300.54
  5. Step 5: Solve for x
    x = 204,701,300.54/16,219.22
  6. Step 6: Final answer
    x = 12,620.91

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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.