Home / 12,216.66-16,857.63-6,910.44

Finding the Fourth Proportional to 12,216.66, 16,857.63 and 6,910.44

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Solution

The fourth proportional to 12,216.66, 16,857.63 and 6,910.44 is: 9,535.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,216.66 : 16,857.63 = 6,910.44 : x
  2. Step 2: Convert to fraction form
    12,216.66/16,857.63 = 6,910.44/x
  3. Step 3: Cross multiply
    12,216.66x = 16,857.63 × 6,910.44
  4. Step 4: Simplify right side
    12,216.66x = 116,493,640.66
  5. Step 5: Solve for x
    x = 116,493,640.66/12,216.66
  6. Step 6: Final answer
    x = 9,535.64

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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.