Home / 12,839.34-19,259.09-3,954.56

Finding the Fourth Proportional to 12,839.34, 19,259.09 and 3,954.56

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Solution

The fourth proportional to 12,839.34, 19,259.09 and 3,954.56 is: 5,931.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,839.34 : 19,259.09 = 3,954.56 : x
  2. Step 2: Convert to fraction form
    12,839.34/19,259.09 = 3,954.56/x
  3. Step 3: Cross multiply
    12,839.34x = 19,259.09 × 3,954.56
  4. Step 4: Simplify right side
    12,839.34x = 76,161,110.88
  5. Step 5: Solve for x
    x = 76,161,110.88/12,839.34
  6. Step 6: Final answer
    x = 5,931.86

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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.