Home / 8,445.60-12,672.96-3,518.64

Finding the Fourth Proportional to 8,445.60, 12,672.96 and 3,518.64

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Solution

The fourth proportional to 8,445.60, 12,672.96 and 3,518.64 is: 5,279.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,445.60 : 12,672.96 = 3,518.64 : x
  2. Step 2: Convert to fraction form
    8,445.60/12,672.96 = 3,518.64/x
  3. Step 3: Cross multiply
    8,445.60x = 12,672.96 × 3,518.64
  4. Step 4: Simplify right side
    8,445.60x = 44,591,583.97
  5. Step 5: Solve for x
    x = 44,591,583.97/8,445.60
  6. Step 6: Final answer
    x = 5,279.86

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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.