Home / 12,761.27-19,122.41-5,361.68

Finding the Fourth Proportional to 12,761.27, 19,122.41 and 5,361.68

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Solution

The fourth proportional to 12,761.27, 19,122.41 and 5,361.68 is: 8,034.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,761.27 : 19,122.41 = 5,361.68 : x
  2. Step 2: Convert to fraction form
    12,761.27/19,122.41 = 5,361.68/x
  3. Step 3: Cross multiply
    12,761.27x = 19,122.41 × 5,361.68
  4. Step 4: Simplify right side
    12,761.27x = 102,528,168.63
  5. Step 5: Solve for x
    x = 102,528,168.63/12,761.27
  6. Step 6: Final answer
    x = 8,034.33

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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.