Home / 12,024.80-18,042.60-5,447.60

Finding the Fourth Proportional to 12,024.80, 18,042.60 and 5,447.60

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Solution

The fourth proportional to 12,024.80, 18,042.60 and 5,447.60 is: 8,173.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,024.80 : 18,042.60 = 5,447.60 : x
  2. Step 2: Convert to fraction form
    12,024.80/18,042.60 = 5,447.60/x
  3. Step 3: Cross multiply
    12,024.80x = 18,042.60 × 5,447.60
  4. Step 4: Simplify right side
    12,024.80x = 98,288,867.76
  5. Step 5: Solve for x
    x = 98,288,867.76/12,024.80
  6. Step 6: Final answer
    x = 8,173.85

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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.