Home / 12,936.14-19,404.33-5,146.94

Finding the Fourth Proportional to 12,936.14, 19,404.33 and 5,146.94

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Solution

The fourth proportional to 12,936.14, 19,404.33 and 5,146.94 is: 7,720.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.14 : 19,404.33 = 5,146.94 : x
  2. Step 2: Convert to fraction form
    12,936.14/19,404.33 = 5,146.94/x
  3. Step 3: Cross multiply
    12,936.14x = 19,404.33 × 5,146.94
  4. Step 4: Simplify right side
    12,936.14x = 99,872,922.25
  5. Step 5: Solve for x
    x = 99,872,922.25/12,936.14
  6. Step 6: Final answer
    x = 7,720.46

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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.