Home / 12,755.11-17,601.82-7,089.64

Finding the Fourth Proportional to 12,755.11, 17,601.82 and 7,089.64

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Solution

The fourth proportional to 12,755.11, 17,601.82 and 7,089.64 is: 9,783.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,755.11 : 17,601.82 = 7,089.64 : x
  2. Step 2: Convert to fraction form
    12,755.11/17,601.82 = 7,089.64/x
  3. Step 3: Cross multiply
    12,755.11x = 17,601.82 × 7,089.64
  4. Step 4: Simplify right side
    12,755.11x = 124,790,540.14
  5. Step 5: Solve for x
    x = 124,790,540.14/12,755.11
  6. Step 6: Final answer
    x = 9,783.57

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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.