Home / 8,403.34-12,609.91-3,141.97

Finding the Fourth Proportional to 8,403.34, 12,609.91 and 3,141.97

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Solution

The fourth proportional to 8,403.34, 12,609.91 and 3,141.97 is: 4,714.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,403.34 : 12,609.91 = 3,141.97 : x
  2. Step 2: Convert to fraction form
    8,403.34/12,609.91 = 3,141.97/x
  3. Step 3: Cross multiply
    8,403.34x = 12,609.91 × 3,141.97
  4. Step 4: Simplify right side
    8,403.34x = 39,619,958.92
  5. Step 5: Solve for x
    x = 39,619,958.92/8,403.34
  6. Step 6: Final answer
    x = 4,714.79

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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.