Home / 8,109.27-12,159.03-3,173.03

Finding the Fourth Proportional to 8,109.27, 12,159.03 and 3,173.03

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Solution

The fourth proportional to 8,109.27, 12,159.03 and 3,173.03 is: 4,757.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,109.27 : 12,159.03 = 3,173.03 : x
  2. Step 2: Convert to fraction form
    8,109.27/12,159.03 = 3,173.03/x
  3. Step 3: Cross multiply
    8,109.27x = 12,159.03 × 3,173.03
  4. Step 4: Simplify right side
    8,109.27x = 38,580,966.96
  5. Step 5: Solve for x
    x = 38,580,966.96/8,109.27
  6. Step 6: Final answer
    x = 4,757.64

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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.