Home / 13,428.46-20,137.44-5,104.06

Finding the Fourth Proportional to 13,428.46, 20,137.44 and 5,104.06

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Solution

The fourth proportional to 13,428.46, 20,137.44 and 5,104.06 is: 7,654.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,428.46 : 20,137.44 = 5,104.06 : x
  2. Step 2: Convert to fraction form
    13,428.46/20,137.44 = 5,104.06/x
  3. Step 3: Cross multiply
    13,428.46x = 20,137.44 × 5,104.06
  4. Step 4: Simplify right side
    13,428.46x = 102,782,702.01
  5. Step 5: Solve for x
    x = 102,782,702.01/13,428.46
  6. Step 6: Final answer
    x = 7,654.09

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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.