Home / 8,231.43-12,348.68-2,686.35

Finding the Fourth Proportional to 8,231.43, 12,348.68 and 2,686.35

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Solution

The fourth proportional to 8,231.43, 12,348.68 and 2,686.35 is: 4,030.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.43 : 12,348.68 = 2,686.35 : x
  2. Step 2: Convert to fraction form
    8,231.43/12,348.68 = 2,686.35/x
  3. Step 3: Cross multiply
    8,231.43x = 12,348.68 × 2,686.35
  4. Step 4: Simplify right side
    8,231.43x = 33,172,863.09
  5. Step 5: Solve for x
    x = 33,172,863.09/8,231.43
  6. Step 6: Final answer
    x = 4,030.02

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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.