Home / 12,664.54-18,998.97-5,647.10

Finding the Fourth Proportional to 12,664.54, 18,998.97 and 5,647.10

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Solution

The fourth proportional to 12,664.54, 18,998.97 and 5,647.10 is: 8,471.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,664.54 : 18,998.97 = 5,647.10 : x
  2. Step 2: Convert to fraction form
    12,664.54/18,998.97 = 5,647.10/x
  3. Step 3: Cross multiply
    12,664.54x = 18,998.97 × 5,647.10
  4. Step 4: Simplify right side
    12,664.54x = 107,289,083.49
  5. Step 5: Solve for x
    x = 107,289,083.49/12,664.54
  6. Step 6: Final answer
    x = 8,471.61

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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.