Home / 12,790.96-17,660.23-8,012.88

Finding the Fourth Proportional to 12,790.96, 17,660.23 and 8,012.88

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Solution

The fourth proportional to 12,790.96, 17,660.23 and 8,012.88 is: 11,063.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,790.96 : 17,660.23 = 8,012.88 : x
  2. Step 2: Convert to fraction form
    12,790.96/17,660.23 = 8,012.88/x
  3. Step 3: Cross multiply
    12,790.96x = 17,660.23 × 8,012.88
  4. Step 4: Simplify right side
    12,790.96x = 141,509,283.73
  5. Step 5: Solve for x
    x = 141,509,283.73/12,790.96
  6. Step 6: Final answer
    x = 11,063.23

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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.