Home / 18,972.88-26,178.12-11,519.44

Finding the Fourth Proportional to 18,972.88, 26,178.12 and 11,519.44

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Solution

The fourth proportional to 18,972.88, 26,178.12 and 11,519.44 is: 15,894.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,972.88 : 26,178.12 = 11,519.44 : x
  2. Step 2: Convert to fraction form
    18,972.88/26,178.12 = 11,519.44/x
  3. Step 3: Cross multiply
    18,972.88x = 26,178.12 × 11,519.44
  4. Step 4: Simplify right side
    18,972.88x = 301,557,282.65
  5. Step 5: Solve for x
    x = 301,557,282.65/18,972.88
  6. Step 6: Final answer
    x = 15,894.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.