Home / 8,120.17-12,170.44-3,953.94

Finding the Fourth Proportional to 8,120.17, 12,170.44 and 3,953.94

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Solution

The fourth proportional to 8,120.17, 12,170.44 and 3,953.94 is: 5,926.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,120.17 : 12,170.44 = 3,953.94 : x
  2. Step 2: Convert to fraction form
    8,120.17/12,170.44 = 3,953.94/x
  3. Step 3: Cross multiply
    8,120.17x = 12,170.44 × 3,953.94
  4. Step 4: Simplify right side
    8,120.17x = 48,121,189.53
  5. Step 5: Solve for x
    x = 48,121,189.53/8,120.17
  6. Step 6: Final answer
    x = 5,926.13

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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.