Home / 12,935.71-19,436.37-8,257.96

Finding the Fourth Proportional to 12,935.71, 19,436.37 and 8,257.96

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Solution

The fourth proportional to 12,935.71, 19,436.37 and 8,257.96 is: 12,407.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,935.71 : 19,436.37 = 8,257.96 : x
  2. Step 2: Convert to fraction form
    12,935.71/19,436.37 = 8,257.96/x
  3. Step 3: Cross multiply
    12,935.71x = 19,436.37 × 8,257.96
  4. Step 4: Simplify right side
    12,935.71x = 160,504,766.01
  5. Step 5: Solve for x
    x = 160,504,766.01/12,935.71
  6. Step 6: Final answer
    x = 12,407.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.