Home / 8,117.44-12,171.50-3,181.30

Finding the Fourth Proportional to 8,117.44, 12,171.50 and 3,181.30

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Solution

The fourth proportional to 8,117.44, 12,171.50 and 3,181.30 is: 4,770.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,117.44 : 12,171.50 = 3,181.30 : x
  2. Step 2: Convert to fraction form
    8,117.44/12,171.50 = 3,181.30/x
  3. Step 3: Cross multiply
    8,117.44x = 12,171.50 × 3,181.30
  4. Step 4: Simplify right side
    8,117.44x = 38,721,192.95
  5. Step 5: Solve for x
    x = 38,721,192.95/8,117.44
  6. Step 6: Final answer
    x = 4,770.12

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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.