Home / 8,403.08-12,611.34-3,786.44

Finding the Fourth Proportional to 8,403.08, 12,611.34 and 3,786.44

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Solution

The fourth proportional to 8,403.08, 12,611.34 and 3,786.44 is: 5,682.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.08 : 12,611.34 = 3,786.44 : x
  2. Step 2: Convert to fraction form
    8,403.08/12,611.34 = 3,786.44/x
  3. Step 3: Cross multiply
    8,403.08x = 12,611.34 × 3,786.44
  4. Step 4: Simplify right side
    8,403.08x = 47,752,082.23
  5. Step 5: Solve for x
    x = 47,752,082.23/8,403.08
  6. Step 6: Final answer
    x = 5,682.69

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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.