Home / 13,729.14-20,581.38-6,329.82

Finding the Fourth Proportional to 13,729.14, 20,581.38 and 6,329.82

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Solution

The fourth proportional to 13,729.14, 20,581.38 and 6,329.82 is: 9,489.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,729.14 : 20,581.38 = 6,329.82 : x
  2. Step 2: Convert to fraction form
    13,729.14/20,581.38 = 6,329.82/x
  3. Step 3: Cross multiply
    13,729.14x = 20,581.38 × 6,329.82
  4. Step 4: Simplify right side
    13,729.14x = 130,276,430.75
  5. Step 5: Solve for x
    x = 130,276,430.75/13,729.14
  6. Step 6: Final answer
    x = 9,489.05

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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.