Home / 8,462.21-12,689.82-3,196.32

Finding the Fourth Proportional to 8,462.21, 12,689.82 and 3,196.32

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Solution

The fourth proportional to 8,462.21, 12,689.82 and 3,196.32 is: 4,793.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,462.21 : 12,689.82 = 3,196.32 : x
  2. Step 2: Convert to fraction form
    8,462.21/12,689.82 = 3,196.32/x
  3. Step 3: Cross multiply
    8,462.21x = 12,689.82 × 3,196.32
  4. Step 4: Simplify right side
    8,462.21x = 40,560,709.48
  5. Step 5: Solve for x
    x = 40,560,709.48/8,462.21
  6. Step 6: Final answer
    x = 4,793.16

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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.