Home / 12,182.20-18,273.26-4,391

Finding the Fourth Proportional to 12,182.20, 18,273.26 and 4,391

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Solution

The fourth proportional to 12,182.20, 18,273.26 and 4,391 is: 6,586.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,182.20 : 18,273.26 = 4,391 : x
  2. Step 2: Convert to fraction form
    12,182.20/18,273.26 = 4,391/x
  3. Step 3: Cross multiply
    12,182.20x = 18,273.26 × 4,391
  4. Step 4: Simplify right side
    12,182.20x = 80,237,884.66
  5. Step 5: Solve for x
    x = 80,237,884.66/12,182.20
  6. Step 6: Final answer
    x = 6,586.49

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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.