Home / 10,076.80-15,103.04-5,144.96

Finding the Fourth Proportional to 10,076.80, 15,103.04 and 5,144.96

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Solution

The fourth proportional to 10,076.80, 15,103.04 and 5,144.96 is: 7,711.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,076.80 : 15,103.04 = 5,144.96 : x
  2. Step 2: Convert to fraction form
    10,076.80/15,103.04 = 5,144.96/x
  3. Step 3: Cross multiply
    10,076.80x = 15,103.04 × 5,144.96
  4. Step 4: Simplify right side
    10,076.80x = 77,704,536.68
  5. Step 5: Solve for x
    x = 77,704,536.68/10,076.80
  6. Step 6: Final answer
    x = 7,711.23

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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.