Home / 14,249.32-19,660.20-7,961.56

Finding the Fourth Proportional to 14,249.32, 19,660.20 and 7,961.56

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Solution

The fourth proportional to 14,249.32, 19,660.20 and 7,961.56 is: 10,984.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,249.32 : 19,660.20 = 7,961.56 : x
  2. Step 2: Convert to fraction form
    14,249.32/19,660.20 = 7,961.56/x
  3. Step 3: Cross multiply
    14,249.32x = 19,660.20 × 7,961.56
  4. Step 4: Simplify right side
    14,249.32x = 156,525,861.91
  5. Step 5: Solve for x
    x = 156,525,861.91/14,249.32
  6. Step 6: Final answer
    x = 10,984.80

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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.