Home / 12,540.75-18,819.77-4,332.75

Finding the Fourth Proportional to 12,540.75, 18,819.77 and 4,332.75

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Solution

The fourth proportional to 12,540.75, 18,819.77 and 4,332.75 is: 6,502.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,540.75 : 18,819.77 = 4,332.75 : x
  2. Step 2: Convert to fraction form
    12,540.75/18,819.77 = 4,332.75/x
  3. Step 3: Cross multiply
    12,540.75x = 18,819.77 × 4,332.75
  4. Step 4: Simplify right side
    12,540.75x = 81,541,336.80
  5. Step 5: Solve for x
    x = 81,541,336.80/12,540.75
  6. Step 6: Final answer
    x = 6,502.11

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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.