Home / 8,129.04-12,188.76-3,194.64

Finding the Fourth Proportional to 8,129.04, 12,188.76 and 3,194.64

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Solution

The fourth proportional to 8,129.04, 12,188.76 and 3,194.64 is: 4,790.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,129.04 : 12,188.76 = 3,194.64 : x
  2. Step 2: Convert to fraction form
    8,129.04/12,188.76 = 3,194.64/x
  3. Step 3: Cross multiply
    8,129.04x = 12,188.76 × 3,194.64
  4. Step 4: Simplify right side
    8,129.04x = 38,938,700.25
  5. Step 5: Solve for x
    x = 38,938,700.25/8,129.04
  6. Step 6: Final answer
    x = 4,790.07

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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.