Home / 12,746.62-19,122.63-3,982.20

Finding the Fourth Proportional to 12,746.62, 19,122.63 and 3,982.20

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Solution

The fourth proportional to 12,746.62, 19,122.63 and 3,982.20 is: 5,974.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,746.62 : 19,122.63 = 3,982.20 : x
  2. Step 2: Convert to fraction form
    12,746.62/19,122.63 = 3,982.20/x
  3. Step 3: Cross multiply
    12,746.62x = 19,122.63 × 3,982.20
  4. Step 4: Simplify right side
    12,746.62x = 76,150,137.19
  5. Step 5: Solve for x
    x = 76,150,137.19/12,746.62
  6. Step 6: Final answer
    x = 5,974.14

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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.