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Finding the Fourth Proportional to 12,757.14, 17,604.08 and 7,091.56

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Solution

The fourth proportional to 12,757.14, 17,604.08 and 7,091.56 is: 9,785.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,757.14 : 17,604.08 = 7,091.56 : x
  2. Step 2: Convert to fraction form
    12,757.14/17,604.08 = 7,091.56/x
  3. Step 3: Cross multiply
    12,757.14x = 17,604.08 × 7,091.56
  4. Step 4: Simplify right side
    12,757.14x = 124,840,310.10
  5. Step 5: Solve for x
    x = 124,840,310.10/12,757.14
  6. Step 6: Final answer
    x = 9,785.92

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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.