Home / 12,982.54-19,471.98-4,217.56

Finding the Fourth Proportional to 12,982.54, 19,471.98 and 4,217.56

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Solution

The fourth proportional to 12,982.54, 19,471.98 and 4,217.56 is: 6,325.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,982.54 : 19,471.98 = 4,217.56 : x
  2. Step 2: Convert to fraction form
    12,982.54/19,471.98 = 4,217.56/x
  3. Step 3: Cross multiply
    12,982.54x = 19,471.98 × 4,217.56
  4. Step 4: Simplify right side
    12,982.54x = 82,124,243.97
  5. Step 5: Solve for x
    x = 82,124,243.97/12,982.54
  6. Step 6: Final answer
    x = 6,325.75

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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.