Home / 18,252.78-27,387.45-7,725.66

Finding the Fourth Proportional to 18,252.78, 27,387.45 and 7,725.66

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Solution

The fourth proportional to 18,252.78, 27,387.45 and 7,725.66 is: 11,591.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,252.78 : 27,387.45 = 7,725.66 : x
  2. Step 2: Convert to fraction form
    18,252.78/27,387.45 = 7,725.66/x
  3. Step 3: Cross multiply
    18,252.78x = 27,387.45 × 7,725.66
  4. Step 4: Simplify right side
    18,252.78x = 211,586,126.97
  5. Step 5: Solve for x
    x = 211,586,126.97/18,252.78
  6. Step 6: Final answer
    x = 11,591.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.