Home / 15,986.43-22,057.92-8,912.70

Finding the Fourth Proportional to 15,986.43, 22,057.92 and 8,912.70

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Solution

The fourth proportional to 15,986.43, 22,057.92 and 8,912.70 is: 12,297.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,986.43 : 22,057.92 = 8,912.70 : x
  2. Step 2: Convert to fraction form
    15,986.43/22,057.92 = 8,912.70/x
  3. Step 3: Cross multiply
    15,986.43x = 22,057.92 × 8,912.70
  4. Step 4: Simplify right side
    15,986.43x = 196,595,623.58
  5. Step 5: Solve for x
    x = 196,595,623.58/15,986.43
  6. Step 6: Final answer
    x = 12,297.66

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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.