Home / 12,481.68-18,711.57-4,695.96

Finding the Fourth Proportional to 12,481.68, 18,711.57 and 4,695.96

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Solution

The fourth proportional to 12,481.68, 18,711.57 and 4,695.96 is: 7,039.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.68 : 18,711.57 = 4,695.96 : x
  2. Step 2: Convert to fraction form
    12,481.68/18,711.57 = 4,695.96/x
  3. Step 3: Cross multiply
    12,481.68x = 18,711.57 × 4,695.96
  4. Step 4: Simplify right side
    12,481.68x = 87,868,784.26
  5. Step 5: Solve for x
    x = 87,868,784.26/12,481.68
  6. Step 6: Final answer
    x = 7,039.82

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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.