Home / 8,272.26-12,408.40-2,800.26

Finding the Fourth Proportional to 8,272.26, 12,408.40 and 2,800.26

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Solution

The fourth proportional to 8,272.26, 12,408.40 and 2,800.26 is: 4,200.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,272.26 : 12,408.40 = 2,800.26 : x
  2. Step 2: Convert to fraction form
    8,272.26/12,408.40 = 2,800.26/x
  3. Step 3: Cross multiply
    8,272.26x = 12,408.40 × 2,800.26
  4. Step 4: Simplify right side
    8,272.26x = 34,746,746.18
  5. Step 5: Solve for x
    x = 34,746,746.18/8,272.26
  6. Step 6: Final answer
    x = 4,200.39

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Similar ratio
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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.