Home / 12,525.86-18,789.74-4,205.92

Finding the Fourth Proportional to 12,525.86, 18,789.74 and 4,205.92

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Solution

The fourth proportional to 12,525.86, 18,789.74 and 4,205.92 is: 6,309.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,525.86 : 18,789.74 = 4,205.92 : x
  2. Step 2: Convert to fraction form
    12,525.86/18,789.74 = 4,205.92/x
  3. Step 3: Cross multiply
    12,525.86x = 18,789.74 × 4,205.92
  4. Step 4: Simplify right side
    12,525.86x = 79,028,143.26
  5. Step 5: Solve for x
    x = 79,028,143.26/12,525.86
  6. Step 6: Final answer
    x = 6,309.20

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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.