Home / 13,418.27-20,132.70-5,100.49

Finding the Fourth Proportional to 13,418.27, 20,132.70 and 5,100.49

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Solution

The fourth proportional to 13,418.27, 20,132.70 and 5,100.49 is: 7,652.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,418.27 : 20,132.70 = 5,100.49 : x
  2. Step 2: Convert to fraction form
    13,418.27/20,132.70 = 5,100.49/x
  3. Step 3: Cross multiply
    13,418.27x = 20,132.70 × 5,100.49
  4. Step 4: Simplify right side
    13,418.27x = 102,686,635.02
  5. Step 5: Solve for x
    x = 102,686,635.02/13,418.27
  6. Step 6: Final answer
    x = 7,652.75

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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.