Home / 13,403.24-20,102.14-5,080.40

Finding the Fourth Proportional to 13,403.24, 20,102.14 and 5,080.40

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Solution

The fourth proportional to 13,403.24, 20,102.14 and 5,080.40 is: 7,619.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,403.24 : 20,102.14 = 5,080.40 : x
  2. Step 2: Convert to fraction form
    13,403.24/20,102.14 = 5,080.40/x
  3. Step 3: Cross multiply
    13,403.24x = 20,102.14 × 5,080.40
  4. Step 4: Simplify right side
    13,403.24x = 102,126,912.06
  5. Step 5: Solve for x
    x = 102,126,912.06/13,403.24
  6. Step 6: Final answer
    x = 7,619.57

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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.