Home / 12,910.38-19,361.61-4,142.94

Finding the Fourth Proportional to 12,910.38, 19,361.61 and 4,142.94

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Solution

The fourth proportional to 12,910.38, 19,361.61 and 4,142.94 is: 6,213.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.38 : 19,361.61 = 4,142.94 : x
  2. Step 2: Convert to fraction form
    12,910.38/19,361.61 = 4,142.94/x
  3. Step 3: Cross multiply
    12,910.38x = 19,361.61 × 4,142.94
  4. Step 4: Simplify right side
    12,910.38x = 80,213,988.53
  5. Step 5: Solve for x
    x = 80,213,988.53/12,910.38
  6. Step 6: Final answer
    x = 6,213.14

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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.