Home / 12,610.80-18,917.49-4,291.41

Finding the Fourth Proportional to 12,610.80, 18,917.49 and 4,291.41

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Solution

The fourth proportional to 12,610.80, 18,917.49 and 4,291.41 is: 6,437.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,610.80 : 18,917.49 = 4,291.41 : x
  2. Step 2: Convert to fraction form
    12,610.80/18,917.49 = 4,291.41/x
  3. Step 3: Cross multiply
    12,610.80x = 18,917.49 × 4,291.41
  4. Step 4: Simplify right side
    12,610.80x = 81,182,609.79
  5. Step 5: Solve for x
    x = 81,182,609.79/12,610.80
  6. Step 6: Final answer
    x = 6,437.54

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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.