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Finding the Fourth Proportional to 12,863.00, 17,750.34 and 7,198.47

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Solution

The fourth proportional to 12,863.00, 17,750.34 and 7,198.47 is: 9,933.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,863.00 : 17,750.34 = 7,198.47 : x
  2. Step 2: Convert to fraction form
    12,863.00/17,750.34 = 7,198.47/x
  3. Step 3: Cross multiply
    12,863.00x = 17,750.34 × 7,198.47
  4. Step 4: Simplify right side
    12,863.00x = 127,775,289.98
  5. Step 5: Solve for x
    x = 127,775,289.98/12,863.00
  6. Step 6: Final answer
    x = 9,933.55

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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.