Home / 8,423.22-12,636.45-2,801.28

Finding the Fourth Proportional to 8,423.22, 12,636.45 and 2,801.28

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Solution

The fourth proportional to 8,423.22, 12,636.45 and 2,801.28 is: 4,202.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,423.22 : 12,636.45 = 2,801.28 : x
  2. Step 2: Convert to fraction form
    8,423.22/12,636.45 = 2,801.28/x
  3. Step 3: Cross multiply
    8,423.22x = 12,636.45 × 2,801.28
  4. Step 4: Simplify right side
    8,423.22x = 35,398,234.66
  5. Step 5: Solve for x
    x = 35,398,234.66/8,423.22
  6. Step 6: Final answer
    x = 4,202.46

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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.