Home / 19,767.64-27,279.42-12,694.12

Finding the Fourth Proportional to 19,767.64, 27,279.42 and 12,694.12

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Solution

The fourth proportional to 19,767.64, 27,279.42 and 12,694.12 is: 17,517.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,767.64 : 27,279.42 = 12,694.12 : x
  2. Step 2: Convert to fraction form
    19,767.64/27,279.42 = 12,694.12/x
  3. Step 3: Cross multiply
    19,767.64x = 27,279.42 × 12,694.12
  4. Step 4: Simplify right side
    19,767.64x = 346,288,231.01
  5. Step 5: Solve for x
    x = 346,288,231.01/19,767.64
  6. Step 6: Final answer
    x = 17,517.93

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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.