Home / 12,527.88-18,789.78-3,761.25

Finding the Fourth Proportional to 12,527.88, 18,789.78 and 3,761.25

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Solution

The fourth proportional to 12,527.88, 18,789.78 and 3,761.25 is: 5,641.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,527.88 : 18,789.78 = 3,761.25 : x
  2. Step 2: Convert to fraction form
    12,527.88/18,789.78 = 3,761.25/x
  3. Step 3: Cross multiply
    12,527.88x = 18,789.78 × 3,761.25
  4. Step 4: Simplify right side
    12,527.88x = 70,673,060.03
  5. Step 5: Solve for x
    x = 70,673,060.03/12,527.88
  6. Step 6: Final answer
    x = 5,641.26

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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.