Home / 12,360.47-18,540.54-3,000.56

Finding the Fourth Proportional to 12,360.47, 18,540.54 and 3,000.56

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Solution

The fourth proportional to 12,360.47, 18,540.54 and 3,000.56 is: 4,500.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,360.47 : 18,540.54 = 3,000.56 : x
  2. Step 2: Convert to fraction form
    12,360.47/18,540.54 = 3,000.56/x
  3. Step 3: Cross multiply
    12,360.47x = 18,540.54 × 3,000.56
  4. Step 4: Simplify right side
    12,360.47x = 55,632,049.05
  5. Step 5: Solve for x
    x = 55,632,049.05/12,360.47
  6. Step 6: Final answer
    x = 4,500.80

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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.