Home / 12,406.47-18,601.38-4,083.54

Finding the Fourth Proportional to 12,406.47, 18,601.38 and 4,083.54

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Solution

The fourth proportional to 12,406.47, 18,601.38 and 4,083.54 is: 6,122.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,406.47 : 18,601.38 = 4,083.54 : x
  2. Step 2: Convert to fraction form
    12,406.47/18,601.38 = 4,083.54/x
  3. Step 3: Cross multiply
    12,406.47x = 18,601.38 × 4,083.54
  4. Step 4: Simplify right side
    12,406.47x = 75,959,479.29
  5. Step 5: Solve for x
    x = 75,959,479.29/12,406.47
  6. Step 6: Final answer
    x = 6,122.57

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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.