Home / 8,104.25-12,155.34-3,177.35

Finding the Fourth Proportional to 8,104.25, 12,155.34 and 3,177.35

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Solution

The fourth proportional to 8,104.25, 12,155.34 and 3,177.35 is: 4,765.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,104.25 : 12,155.34 = 3,177.35 : x
  2. Step 2: Convert to fraction form
    8,104.25/12,155.34 = 3,177.35/x
  3. Step 3: Cross multiply
    8,104.25x = 12,155.34 × 3,177.35
  4. Step 4: Simplify right side
    8,104.25x = 38,621,769.55
  5. Step 5: Solve for x
    x = 38,621,769.55/8,104.25
  6. Step 6: Final answer
    x = 4,765.62

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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.