Home / 10,131.28-13,927.55-8,709.73

Finding the Fourth Proportional to 10,131.28, 13,927.55 and 8,709.73

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Solution

The fourth proportional to 10,131.28, 13,927.55 and 8,709.73 is: 11,973.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,131.28 : 13,927.55 = 8,709.73 : x
  2. Step 2: Convert to fraction form
    10,131.28/13,927.55 = 8,709.73/x
  3. Step 3: Cross multiply
    10,131.28x = 13,927.55 × 8,709.73
  4. Step 4: Simplify right side
    10,131.28x = 121,305,121.69
  5. Step 5: Solve for x
    x = 121,305,121.69/10,131.28
  6. Step 6: Final answer
    x = 11,973.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.