Home / 11,619.72-17,428.14-4,223.88

Finding the Fourth Proportional to 11,619.72, 17,428.14 and 4,223.88

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Solution

The fourth proportional to 11,619.72, 17,428.14 and 4,223.88 is: 6,335.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,619.72 : 17,428.14 = 4,223.88 : x
  2. Step 2: Convert to fraction form
    11,619.72/17,428.14 = 4,223.88/x
  3. Step 3: Cross multiply
    11,619.72x = 17,428.14 × 4,223.88
  4. Step 4: Simplify right side
    11,619.72x = 73,614,371.98
  5. Step 5: Solve for x
    x = 73,614,371.98/11,619.72
  6. Step 6: Final answer
    x = 6,335.30

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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.