Home / 12,182.20-18,273.30-4,388.20

Finding the Fourth Proportional to 12,182.20, 18,273.30 and 4,388.20

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Solution

The fourth proportional to 12,182.20, 18,273.30 and 4,388.20 is: 6,582.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.20 : 18,273.30 = 4,388.20 : x
  2. Step 2: Convert to fraction form
    12,182.20/18,273.30 = 4,388.20/x
  3. Step 3: Cross multiply
    12,182.20x = 18,273.30 × 4,388.20
  4. Step 4: Simplify right side
    12,182.20x = 80,186,895.06
  5. Step 5: Solve for x
    x = 80,186,895.06/12,182.20
  6. Step 6: Final answer
    x = 6,582.30

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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.