Home / 12,911.36-19,366.77-3,551.34

Finding the Fourth Proportional to 12,911.36, 19,366.77 and 3,551.34

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Solution

The fourth proportional to 12,911.36, 19,366.77 and 3,551.34 is: 5,326.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,911.36 : 19,366.77 = 3,551.34 : x
  2. Step 2: Convert to fraction form
    12,911.36/19,366.77 = 3,551.34/x
  3. Step 3: Cross multiply
    12,911.36x = 19,366.77 × 3,551.34
  4. Step 4: Simplify right side
    12,911.36x = 68,777,984.97
  5. Step 5: Solve for x
    x = 68,777,984.97/12,911.36
  6. Step 6: Final answer
    x = 5,326.94

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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.