Home / 12,504.15-18,753.75-3,620.52

Finding the Fourth Proportional to 12,504.15, 18,753.75 and 3,620.52

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Solution

The fourth proportional to 12,504.15, 18,753.75 and 3,620.52 is: 5,430.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,504.15 : 18,753.75 = 3,620.52 : x
  2. Step 2: Convert to fraction form
    12,504.15/18,753.75 = 3,620.52/x
  3. Step 3: Cross multiply
    12,504.15x = 18,753.75 × 3,620.52
  4. Step 4: Simplify right side
    12,504.15x = 67,898,326.95
  5. Step 5: Solve for x
    x = 67,898,326.95/12,504.15
  6. Step 6: Final answer
    x = 5,430.06

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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.