Home / 12,791.84-19,190.64-5,002.88

Finding the Fourth Proportional to 12,791.84, 19,190.64 and 5,002.88

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Solution

The fourth proportional to 12,791.84, 19,190.64 and 5,002.88 is: 7,505.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,791.84 : 19,190.64 = 5,002.88 : x
  2. Step 2: Convert to fraction form
    12,791.84/19,190.64 = 5,002.88/x
  3. Step 3: Cross multiply
    12,791.84x = 19,190.64 × 5,002.88
  4. Step 4: Simplify right side
    12,791.84x = 96,008,469.04
  5. Step 5: Solve for x
    x = 96,008,469.04/12,791.84
  6. Step 6: Final answer
    x = 7,505.45

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1.5x scale

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.