Home / 18,418.40-27,627.60-8,576.90

Finding the Fourth Proportional to 18,418.40, 27,627.60 and 8,576.90

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Solution

The fourth proportional to 18,418.40, 27,627.60 and 8,576.90 is: 12,865.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,418.40 : 27,627.60 = 8,576.90 : x
  2. Step 2: Convert to fraction form
    18,418.40/27,627.60 = 8,576.90/x
  3. Step 3: Cross multiply
    18,418.40x = 27,627.60 × 8,576.90
  4. Step 4: Simplify right side
    18,418.40x = 236,959,162.44
  5. Step 5: Solve for x
    x = 236,959,162.44/18,418.40
  6. Step 6: Final answer
    x = 12,865.35

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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.