Home / 8,130.68-12,196.83-2,207.66

Finding the Fourth Proportional to 8,130.68, 12,196.83 and 2,207.66

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Solution

The fourth proportional to 8,130.68, 12,196.83 and 2,207.66 is: 3,311.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.68 : 12,196.83 = 2,207.66 : x
  2. Step 2: Convert to fraction form
    8,130.68/12,196.83 = 2,207.66/x
  3. Step 3: Cross multiply
    8,130.68x = 12,196.83 × 2,207.66
  4. Step 4: Simplify right side
    8,130.68x = 26,926,438.47
  5. Step 5: Solve for x
    x = 26,926,438.47/8,130.68
  6. Step 6: Final answer
    x = 3,311.71

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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.