Home / 12,746.75-19,122.82-3,982.32

Finding the Fourth Proportional to 12,746.75, 19,122.82 and 3,982.32

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Solution

The fourth proportional to 12,746.75, 19,122.82 and 3,982.32 is: 5,974.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.75 : 19,122.82 = 3,982.32 : x
  2. Step 2: Convert to fraction form
    12,746.75/19,122.82 = 3,982.32/x
  3. Step 3: Cross multiply
    12,746.75x = 19,122.82 × 3,982.32
  4. Step 4: Simplify right side
    12,746.75x = 76,153,178.59
  5. Step 5: Solve for x
    x = 76,153,178.59/12,746.75
  6. Step 6: Final answer
    x = 5,974.32

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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.