Home / 8,231.47-12,348.42-2,387.32

Finding the Fourth Proportional to 8,231.47, 12,348.42 and 2,387.32

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Solution

The fourth proportional to 8,231.47, 12,348.42 and 2,387.32 is: 3,581.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,231.47 : 12,348.42 = 2,387.32 : x
  2. Step 2: Convert to fraction form
    8,231.47/12,348.42 = 2,387.32/x
  3. Step 3: Cross multiply
    8,231.47x = 12,348.42 × 2,387.32
  4. Step 4: Simplify right side
    8,231.47x = 29,479,630.03
  5. Step 5: Solve for x
    x = 29,479,630.03/8,231.47
  6. Step 6: Final answer
    x = 3,581.33

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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.