Home / 12,207.98-18,310.71-8,284.43

Finding the Fourth Proportional to 12,207.98, 18,310.71 and 8,284.43

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Solution

The fourth proportional to 12,207.98, 18,310.71 and 8,284.43 is: 12,425.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.98 : 18,310.71 = 8,284.43 : x
  2. Step 2: Convert to fraction form
    12,207.98/18,310.71 = 8,284.43/x
  3. Step 3: Cross multiply
    12,207.98x = 18,310.71 × 8,284.43
  4. Step 4: Simplify right side
    12,207.98x = 151,693,795.25
  5. Step 5: Solve for x
    x = 151,693,795.25/12,207.98
  6. Step 6: Final answer
    x = 12,425.79

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1.5x scale

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.