Home / 12,480.08-17,245.32-11,872.64

Finding the Fourth Proportional to 12,480.08, 17,245.32 and 11,872.64

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Solution

The fourth proportional to 12,480.08, 17,245.32 and 11,872.64 is: 16,405.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,480.08 : 17,245.32 = 11,872.64 : x
  2. Step 2: Convert to fraction form
    12,480.08/17,245.32 = 11,872.64/x
  3. Step 3: Cross multiply
    12,480.08x = 17,245.32 × 11,872.64
  4. Step 4: Simplify right side
    12,480.08x = 204,747,476.04
  5. Step 5: Solve for x
    x = 204,747,476.04/12,480.08
  6. Step 6: Final answer
    x = 16,405.94

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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.