Home / 13,418.68-20,122.39-5,094.11

Finding the Fourth Proportional to 13,418.68, 20,122.39 and 5,094.11

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Solution

The fourth proportional to 13,418.68, 20,122.39 and 5,094.11 is: 7,639.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.68 : 20,122.39 = 5,094.11 : x
  2. Step 2: Convert to fraction form
    13,418.68/20,122.39 = 5,094.11/x
  3. Step 3: Cross multiply
    13,418.68x = 20,122.39 × 5,094.11
  4. Step 4: Simplify right side
    13,418.68x = 102,505,554.78
  5. Step 5: Solve for x
    x = 102,505,554.78/13,418.68
  6. Step 6: Final answer
    x = 7,639.02

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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.