Home / 19,825.26-27,359.55-10,872.78

Finding the Fourth Proportional to 19,825.26, 27,359.55 and 10,872.78

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Solution

The fourth proportional to 19,825.26, 27,359.55 and 10,872.78 is: 15,004.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,825.26 : 27,359.55 = 10,872.78 : x
  2. Step 2: Convert to fraction form
    19,825.26/27,359.55 = 10,872.78/x
  3. Step 3: Cross multiply
    19,825.26x = 27,359.55 × 10,872.78
  4. Step 4: Simplify right side
    19,825.26x = 297,474,368.05
  5. Step 5: Solve for x
    x = 297,474,368.05/19,825.26
  6. Step 6: Final answer
    x = 15,004.82

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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.