Home / 12,214.33-18,312.68-8,255.79

Finding the Fourth Proportional to 12,214.33, 18,312.68 and 8,255.79

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Solution

The fourth proportional to 12,214.33, 18,312.68 and 8,255.79 is: 12,377.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,214.33 : 18,312.68 = 8,255.79 : x
  2. Step 2: Convert to fraction form
    12,214.33/18,312.68 = 8,255.79/x
  3. Step 3: Cross multiply
    12,214.33x = 18,312.68 × 8,255.79
  4. Step 4: Simplify right side
    12,214.33x = 151,185,583.80
  5. Step 5: Solve for x
    x = 151,185,583.80/12,214.33
  6. Step 6: Final answer
    x = 12,377.72

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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.