Home / 8,422.11-11,622.23-4,645.43

Finding the Fourth Proportional to 8,422.11, 11,622.23 and 4,645.43

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Solution

The fourth proportional to 8,422.11, 11,622.23 and 4,645.43 is: 6,410.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,422.11 : 11,622.23 = 4,645.43 : x
  2. Step 2: Convert to fraction form
    8,422.11/11,622.23 = 4,645.43/x
  3. Step 3: Cross multiply
    8,422.11x = 11,622.23 × 4,645.43
  4. Step 4: Simplify right side
    8,422.11x = 53,990,174.57
  5. Step 5: Solve for x
    x = 53,990,174.57/8,422.11
  6. Step 6: Final answer
    x = 6,410.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.