Home / 12,179.94-18,262.84-4,775.72

Finding the Fourth Proportional to 12,179.94, 18,262.84 and 4,775.72

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Solution

The fourth proportional to 12,179.94, 18,262.84 and 4,775.72 is: 7,160.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,179.94 : 18,262.84 = 4,775.72 : x
  2. Step 2: Convert to fraction form
    12,179.94/18,262.84 = 4,775.72/x
  3. Step 3: Cross multiply
    12,179.94x = 18,262.84 × 4,775.72
  4. Step 4: Simplify right side
    12,179.94x = 87,218,210.24
  5. Step 5: Solve for x
    x = 87,218,210.24/12,179.94
  6. Step 6: Final answer
    x = 7,160.81

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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.