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Finding the Fourth Proportional to 12,995.87, 17,934.31 and 7,027.54

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Solution

The fourth proportional to 12,995.87, 17,934.31 and 7,027.54 is: 9,698.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,995.87 : 17,934.31 = 7,027.54 : x
  2. Step 2: Convert to fraction form
    12,995.87/17,934.31 = 7,027.54/x
  3. Step 3: Cross multiply
    12,995.87x = 17,934.31 × 7,027.54
  4. Step 4: Simplify right side
    12,995.87x = 126,034,080.90
  5. Step 5: Solve for x
    x = 126,034,080.90/12,995.87
  6. Step 6: Final answer
    x = 9,698.01

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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.