Home / 12,906.38-19,357.25-3,418.76

Finding the Fourth Proportional to 12,906.38, 19,357.25 and 3,418.76

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Solution

The fourth proportional to 12,906.38, 19,357.25 and 3,418.76 is: 5,127.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,906.38 : 19,357.25 = 3,418.76 : x
  2. Step 2: Convert to fraction form
    12,906.38/19,357.25 = 3,418.76/x
  3. Step 3: Cross multiply
    12,906.38x = 19,357.25 × 3,418.76
  4. Step 4: Simplify right side
    12,906.38x = 66,177,678.13
  5. Step 5: Solve for x
    x = 66,177,678.13/12,906.38
  6. Step 6: Final answer
    x = 5,127.52

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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.