Home / 12,910.29-19,361.38-4,143.25

Finding the Fourth Proportional to 12,910.29, 19,361.38 and 4,143.25

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Solution

The fourth proportional to 12,910.29, 19,361.38 and 4,143.25 is: 6,213.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,910.29 : 19,361.38 = 4,143.25 : x
  2. Step 2: Convert to fraction form
    12,910.29/19,361.38 = 4,143.25/x
  3. Step 3: Cross multiply
    12,910.29x = 19,361.38 × 4,143.25
  4. Step 4: Simplify right side
    12,910.29x = 80,219,037.69
  5. Step 5: Solve for x
    x = 80,219,037.69/12,910.29
  6. Step 6: Final answer
    x = 6,213.57

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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.