Home / 13,697.26-20,551.19-5,375.79

Finding the Fourth Proportional to 13,697.26, 20,551.19 and 5,375.79

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Solution

The fourth proportional to 13,697.26, 20,551.19 and 5,375.79 is: 8,065.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,697.26 : 20,551.19 = 5,375.79 : x
  2. Step 2: Convert to fraction form
    13,697.26/20,551.19 = 5,375.79/x
  3. Step 3: Cross multiply
    13,697.26x = 20,551.19 × 5,375.79
  4. Step 4: Simplify right side
    13,697.26x = 110,478,854.81
  5. Step 5: Solve for x
    x = 110,478,854.81/13,697.26
  6. Step 6: Final answer
    x = 8,065.76

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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.