Home / 8,115.22-12,175.34-3,437.32

Finding the Fourth Proportional to 8,115.22, 12,175.34 and 3,437.32

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Solution

The fourth proportional to 8,115.22, 12,175.34 and 3,437.32 is: 5,157.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,115.22 : 12,175.34 = 3,437.32 : x
  2. Step 2: Convert to fraction form
    8,115.22/12,175.34 = 3,437.32/x
  3. Step 3: Cross multiply
    8,115.22x = 12,175.34 × 3,437.32
  4. Step 4: Simplify right side
    8,115.22x = 41,850,539.69
  5. Step 5: Solve for x
    x = 41,850,539.69/8,115.22
  6. Step 6: Final answer
    x = 5,157.04

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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.