Home / 13,754.43-20,617.68-5,423.01

Finding the Fourth Proportional to 13,754.43, 20,617.68 and 5,423.01

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Solution

The fourth proportional to 13,754.43, 20,617.68 and 5,423.01 is: 8,129.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,754.43 : 20,617.68 = 5,423.01 : x
  2. Step 2: Convert to fraction form
    13,754.43/20,617.68 = 5,423.01/x
  3. Step 3: Cross multiply
    13,754.43x = 20,617.68 × 5,423.01
  4. Step 4: Simplify right side
    13,754.43x = 111,809,884.82
  5. Step 5: Solve for x
    x = 111,809,884.82/13,754.43
  6. Step 6: Final answer
    x = 8,129.01

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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.