Home / 19,711.88-27,202.39-12,647.87

Finding the Fourth Proportional to 19,711.88, 27,202.39 and 12,647.87

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Solution

The fourth proportional to 19,711.88, 27,202.39 and 12,647.87 is: 17,454.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,711.88 : 27,202.39 = 12,647.87 : x
  2. Step 2: Convert to fraction form
    19,711.88/27,202.39 = 12,647.87/x
  3. Step 3: Cross multiply
    19,711.88x = 27,202.39 × 12,647.87
  4. Step 4: Simplify right side
    19,711.88x = 344,052,124.78
  5. Step 5: Solve for x
    x = 344,052,124.78/19,711.88
  6. Step 6: Final answer
    x = 17,454.05

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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.