Home / 8,157.80-12,238.14-2,609.48

Finding the Fourth Proportional to 8,157.80, 12,238.14 and 2,609.48

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Solution

The fourth proportional to 8,157.80, 12,238.14 and 2,609.48 is: 3,914.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,157.80 : 12,238.14 = 2,609.48 : x
  2. Step 2: Convert to fraction form
    8,157.80/12,238.14 = 2,609.48/x
  3. Step 3: Cross multiply
    8,157.80x = 12,238.14 × 2,609.48
  4. Step 4: Simplify right side
    8,157.80x = 31,935,181.57
  5. Step 5: Solve for x
    x = 31,935,181.57/8,157.80
  6. Step 6: Final answer
    x = 3,914.68

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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.