Home / 15,676.56-21,632.22-8,961.98

Finding the Fourth Proportional to 15,676.56, 21,632.22 and 8,961.98

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Solution

The fourth proportional to 15,676.56, 21,632.22 and 8,961.98 is: 12,366.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,676.56 : 21,632.22 = 8,961.98 : x
  2. Step 2: Convert to fraction form
    15,676.56/21,632.22 = 8,961.98/x
  3. Step 3: Cross multiply
    15,676.56x = 21,632.22 × 8,961.98
  4. Step 4: Simplify right side
    15,676.56x = 193,867,414.83
  5. Step 5: Solve for x
    x = 193,867,414.83/15,676.56
  6. Step 6: Final answer
    x = 12,366.71

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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.