Home / 12,186.94-18,278.25-4,395.82

Finding the Fourth Proportional to 12,186.94, 18,278.25 and 4,395.82

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Solution

The fourth proportional to 12,186.94, 18,278.25 and 4,395.82 is: 6,592.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,186.94 : 18,278.25 = 4,395.82 : x
  2. Step 2: Convert to fraction form
    12,186.94/18,278.25 = 4,395.82/x
  3. Step 3: Cross multiply
    12,186.94x = 18,278.25 × 4,395.82
  4. Step 4: Simplify right side
    12,186.94x = 80,347,896.92
  5. Step 5: Solve for x
    x = 80,347,896.92/12,186.94
  6. Step 6: Final answer
    x = 6,592.95

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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.