Home / 8,081.30-12,119.48-6,496.25

Finding the Fourth Proportional to 8,081.30, 12,119.48 and 6,496.25

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Solution

The fourth proportional to 8,081.30, 12,119.48 and 6,496.25 is: 9,742.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,081.30 : 12,119.48 = 6,496.25 : x
  2. Step 2: Convert to fraction form
    8,081.30/12,119.48 = 6,496.25/x
  3. Step 3: Cross multiply
    8,081.30x = 12,119.48 × 6,496.25
  4. Step 4: Simplify right side
    8,081.30x = 78,731,171.95
  5. Step 5: Solve for x
    x = 78,731,171.95/8,081.30
  6. Step 6: Final answer
    x = 9,742.39

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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.