Home / 14,905.72-20,571.78-8,617.96

Finding the Fourth Proportional to 14,905.72, 20,571.78 and 8,617.96

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Solution

The fourth proportional to 14,905.72, 20,571.78 and 8,617.96 is: 11,893.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,905.72 : 20,571.78 = 8,617.96 : x
  2. Step 2: Convert to fraction form
    14,905.72/20,571.78 = 8,617.96/x
  3. Step 3: Cross multiply
    14,905.72x = 20,571.78 × 8,617.96
  4. Step 4: Simplify right side
    14,905.72x = 177,286,777.17
  5. Step 5: Solve for x
    x = 177,286,777.17/14,905.72
  6. Step 6: Final answer
    x = 11,893.88

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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.