Home / 13,918.32-20,882.04-5,153.88

Finding the Fourth Proportional to 13,918.32, 20,882.04 and 5,153.88

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Solution

The fourth proportional to 13,918.32, 20,882.04 and 5,153.88 is: 7,732.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,918.32 : 20,882.04 = 5,153.88 : x
  2. Step 2: Convert to fraction form
    13,918.32/20,882.04 = 5,153.88/x
  3. Step 3: Cross multiply
    13,918.32x = 20,882.04 × 5,153.88
  4. Step 4: Simplify right side
    13,918.32x = 107,623,528.32
  5. Step 5: Solve for x
    x = 107,623,528.32/13,918.32
  6. Step 6: Final answer
    x = 7,732.51

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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.