Home / 12,828.76-19,221.24-6,974.92

Finding the Fourth Proportional to 12,828.76, 19,221.24 and 6,974.92

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Solution

The fourth proportional to 12,828.76, 19,221.24 and 6,974.92 is: 10,450.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,828.76 : 19,221.24 = 6,974.92 : x
  2. Step 2: Convert to fraction form
    12,828.76/19,221.24 = 6,974.92/x
  3. Step 3: Cross multiply
    12,828.76x = 19,221.24 × 6,974.92
  4. Step 4: Simplify right side
    12,828.76x = 134,066,611.30
  5. Step 5: Solve for x
    x = 134,066,611.30/12,828.76
  6. Step 6: Final answer
    x = 10,450.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.