Home / 19,976.68-27,561.06-11,590.12

Finding the Fourth Proportional to 19,976.68, 27,561.06 and 11,590.12

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Solution

The fourth proportional to 19,976.68, 27,561.06 and 11,590.12 is: 15,990.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,976.68 : 27,561.06 = 11,590.12 : x
  2. Step 2: Convert to fraction form
    19,976.68/27,561.06 = 11,590.12/x
  3. Step 3: Cross multiply
    19,976.68x = 27,561.06 × 11,590.12
  4. Step 4: Simplify right side
    19,976.68x = 319,435,992.73
  5. Step 5: Solve for x
    x = 319,435,992.73/19,976.68
  6. Step 6: Final answer
    x = 15,990.44

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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.