Home / 18,773.85-25,890.35-12,724.97

Finding the Fourth Proportional to 18,773.85, 25,890.35 and 12,724.97

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Solution

The fourth proportional to 18,773.85, 25,890.35 and 12,724.97 is: 17,548.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,773.85 : 25,890.35 = 12,724.97 : x
  2. Step 2: Convert to fraction form
    18,773.85/25,890.35 = 12,724.97/x
  3. Step 3: Cross multiply
    18,773.85x = 25,890.35 × 12,724.97
  4. Step 4: Simplify right side
    18,773.85x = 329,453,927.04
  5. Step 5: Solve for x
    x = 329,453,927.04/18,773.85
  6. Step 6: Final answer
    x = 17,548.55

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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.