Home / 8,456.22-12,686.36-2,612.84

Finding the Fourth Proportional to 8,456.22, 12,686.36 and 2,612.84

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Solution

The fourth proportional to 8,456.22, 12,686.36 and 2,612.84 is: 3,919.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,456.22 : 12,686.36 = 2,612.84 : x
  2. Step 2: Convert to fraction form
    8,456.22/12,686.36 = 2,612.84/x
  3. Step 3: Cross multiply
    8,456.22x = 12,686.36 × 2,612.84
  4. Step 4: Simplify right side
    8,456.22x = 33,147,352.37
  5. Step 5: Solve for x
    x = 33,147,352.37/8,456.22
  6. Step 6: Final answer
    x = 3,919.88

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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.