Home / 13,402.13-20,103.50-5,086.06

Finding the Fourth Proportional to 13,402.13, 20,103.50 and 5,086.06

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Solution

The fourth proportional to 13,402.13, 20,103.50 and 5,086.06 is: 7,629.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,402.13 : 20,103.50 = 5,086.06 : x
  2. Step 2: Convert to fraction form
    13,402.13/20,103.50 = 5,086.06/x
  3. Step 3: Cross multiply
    13,402.13x = 20,103.50 × 5,086.06
  4. Step 4: Simplify right side
    13,402.13x = 102,247,607.21
  5. Step 5: Solve for x
    x = 102,247,607.21/13,402.13
  6. Step 6: Final answer
    x = 7,629.21

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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.