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Finding the Fourth Proportional to 8,160.95, 12,241.43 and 3,543.95

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Solution

The fourth proportional to 8,160.95, 12,241.43 and 3,543.95 is: 5,315.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,160.95 : 12,241.43 = 3,543.95 : x
  2. Step 2: Convert to fraction form
    8,160.95/12,241.43 = 3,543.95/x
  3. Step 3: Cross multiply
    8,160.95x = 12,241.43 × 3,543.95
  4. Step 4: Simplify right side
    8,160.95x = 43,382,936.92
  5. Step 5: Solve for x
    x = 43,382,936.92/8,160.95
  6. Step 6: Final answer
    x = 5,315.92

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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.