Home / 8,126.16-12,186.72-3,194.46

Finding the Fourth Proportional to 8,126.16, 12,186.72 and 3,194.46

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Solution

The fourth proportional to 8,126.16, 12,186.72 and 3,194.46 is: 4,790.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,126.16 : 12,186.72 = 3,194.46 : x
  2. Step 2: Convert to fraction form
    8,126.16/12,186.72 = 3,194.46/x
  3. Step 3: Cross multiply
    8,126.16x = 12,186.72 × 3,194.46
  4. Step 4: Simplify right side
    8,126.16x = 38,929,989.57
  5. Step 5: Solve for x
    x = 38,929,989.57/8,126.16
  6. Step 6: Final answer
    x = 4,790.70

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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.