Home / 12,203.75-18,313.14-5,630.43

Finding the Fourth Proportional to 12,203.75, 18,313.14 and 5,630.43

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Solution

The fourth proportional to 12,203.75, 18,313.14 and 5,630.43 is: 8,449.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203.75 : 18,313.14 = 5,630.43 : x
  2. Step 2: Convert to fraction form
    12,203.75/18,313.14 = 5,630.43/x
  3. Step 3: Cross multiply
    12,203.75x = 18,313.14 × 5,630.43
  4. Step 4: Simplify right side
    12,203.75x = 103,110,852.85
  5. Step 5: Solve for x
    x = 103,110,852.85/12,203.75
  6. Step 6: Final answer
    x = 8,449.11

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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.