Home / 12,936.24-19,404.90-4,170.06

Finding the Fourth Proportional to 12,936.24, 19,404.90 and 4,170.06

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Solution

The fourth proportional to 12,936.24, 19,404.90 and 4,170.06 is: 6,255.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,936.24 : 19,404.90 = 4,170.06 : x
  2. Step 2: Convert to fraction form
    12,936.24/19,404.90 = 4,170.06/x
  3. Step 3: Cross multiply
    12,936.24x = 19,404.90 × 4,170.06
  4. Step 4: Simplify right side
    12,936.24x = 80,919,597.29
  5. Step 5: Solve for x
    x = 80,919,597.29/12,936.24
  6. Step 6: Final answer
    x = 6,255.26

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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.