Home / 19,809.29-27,336.80-11,425.79

Finding the Fourth Proportional to 19,809.29, 27,336.80 and 11,425.79

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Solution

The fourth proportional to 19,809.29, 27,336.80 and 11,425.79 is: 15,767.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,809.29 : 27,336.80 = 11,425.79 : x
  2. Step 2: Convert to fraction form
    19,809.29/27,336.80 = 11,425.79/x
  3. Step 3: Cross multiply
    19,809.29x = 27,336.80 × 11,425.79
  4. Step 4: Simplify right side
    19,809.29x = 312,344,632.98
  5. Step 5: Solve for x
    x = 312,344,632.98/19,809.29
  6. Step 6: Final answer
    x = 15,767.58

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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.