Home / 12,111.12-16,713.24-6,805.97

Finding the Fourth Proportional to 12,111.12, 16,713.24 and 6,805.97

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Solution

The fourth proportional to 12,111.12, 16,713.24 and 6,805.97 is: 9,392.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,111.12 : 16,713.24 = 6,805.97 : x
  2. Step 2: Convert to fraction form
    12,111.12/16,713.24 = 6,805.97/x
  3. Step 3: Cross multiply
    12,111.12x = 16,713.24 × 6,805.97
  4. Step 4: Simplify right side
    12,111.12x = 113,749,857.64
  5. Step 5: Solve for x
    x = 113,749,857.64/12,111.12
  6. Step 6: Final answer
    x = 9,392.18

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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.