Home / 12,203.55-18,306.54-5,631.61

Finding the Fourth Proportional to 12,203.55, 18,306.54 and 5,631.61

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Solution

The fourth proportional to 12,203.55, 18,306.54 and 5,631.61 is: 8,447.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,203.55 : 18,306.54 = 5,631.61 : x
  2. Step 2: Convert to fraction form
    12,203.55/18,306.54 = 5,631.61/x
  3. Step 3: Cross multiply
    12,203.55x = 18,306.54 × 5,631.61
  4. Step 4: Simplify right side
    12,203.55x = 103,095,293.73
  5. Step 5: Solve for x
    x = 103,095,293.73/12,203.55
  6. Step 6: Final answer
    x = 8,447.98

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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.