Home / 13,914.24-20,859.48-5,147.52

Finding the Fourth Proportional to 13,914.24, 20,859.48 and 5,147.52

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Solution

The fourth proportional to 13,914.24, 20,859.48 and 5,147.52 is: 7,716.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.24 : 20,859.48 = 5,147.52 : x
  2. Step 2: Convert to fraction form
    13,914.24/20,859.48 = 5,147.52/x
  3. Step 3: Cross multiply
    13,914.24x = 20,859.48 × 5,147.52
  4. Step 4: Simplify right side
    13,914.24x = 107,374,590.49
  5. Step 5: Solve for x
    x = 107,374,590.49/13,914.24
  6. Step 6: Final answer
    x = 7,716.89

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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.