Home / 19,717.97-27,207.29-11,218.74

Finding the Fourth Proportional to 19,717.97, 27,207.29 and 11,218.74

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Solution

The fourth proportional to 19,717.97, 27,207.29 and 11,218.74 is: 15,479.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.97 : 27,207.29 = 11,218.74 : x
  2. Step 2: Convert to fraction form
    19,717.97/27,207.29 = 11,218.74/x
  3. Step 3: Cross multiply
    19,717.97x = 27,207.29 × 11,218.74
  4. Step 4: Simplify right side
    19,717.97x = 305,231,438.63
  5. Step 5: Solve for x
    x = 305,231,438.63/19,717.97
  6. Step 6: Final answer
    x = 15,479.87

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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.