Home / 12,172.22-16,797.38-6,866.90

Finding the Fourth Proportional to 12,172.22, 16,797.38 and 6,866.90

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Solution

The fourth proportional to 12,172.22, 16,797.38 and 6,866.90 is: 9,476.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,172.22 : 16,797.38 = 6,866.90 : x
  2. Step 2: Convert to fraction form
    12,172.22/16,797.38 = 6,866.90/x
  3. Step 3: Cross multiply
    12,172.22x = 16,797.38 × 6,866.90
  4. Step 4: Simplify right side
    12,172.22x = 115,345,928.72
  5. Step 5: Solve for x
    x = 115,345,928.72/12,172.22
  6. Step 6: Final answer
    x = 9,476.16

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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.