Home / 8,085.12-12,128.54-2,241.74

Finding the Fourth Proportional to 8,085.12, 12,128.54 and 2,241.74

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Solution

The fourth proportional to 8,085.12, 12,128.54 and 2,241.74 is: 3,362.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,085.12 : 12,128.54 = 2,241.74 : x
  2. Step 2: Convert to fraction form
    8,085.12/12,128.54 = 2,241.74/x
  3. Step 3: Cross multiply
    8,085.12x = 12,128.54 × 2,241.74
  4. Step 4: Simplify right side
    8,085.12x = 27,188,961.41
  5. Step 5: Solve for x
    x = 27,188,961.41/8,085.12
  6. Step 6: Final answer
    x = 3,362.84

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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.