Home / 12,625.22-18,937.15-3,859.47

Finding the Fourth Proportional to 12,625.22, 18,937.15 and 3,859.47

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Solution

The fourth proportional to 12,625.22, 18,937.15 and 3,859.47 is: 5,789.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,625.22 : 18,937.15 = 3,859.47 : x
  2. Step 2: Convert to fraction form
    12,625.22/18,937.15 = 3,859.47/x
  3. Step 3: Cross multiply
    12,625.22x = 18,937.15 × 3,859.47
  4. Step 4: Simplify right side
    12,625.22x = 73,087,352.66
  5. Step 5: Solve for x
    x = 73,087,352.66/12,625.22
  6. Step 6: Final answer
    x = 5,789.00

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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.