Home / 12,757.12-19,135.68-11,824

Finding the Fourth Proportional to 12,757.12, 19,135.68 and 11,824

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Solution

The fourth proportional to 12,757.12, 19,135.68 and 11,824 is: 17,736

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,757.12 : 19,135.68 = 11,824 : x
  2. Step 2: Convert to fraction form
    12,757.12/19,135.68 = 11,824/x
  3. Step 3: Cross multiply
    12,757.12x = 19,135.68 × 11,824
  4. Step 4: Simplify right side
    12,757.12x = 226,260,280.32
  5. Step 5: Solve for x
    x = 226,260,280.32/12,757.12
  6. Step 6: Final answer
    x = 17,736

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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.