Home / 13,872.69-20,809.64-4,012.97

Finding the Fourth Proportional to 13,872.69, 20,809.64 and 4,012.97

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Solution

The fourth proportional to 13,872.69, 20,809.64 and 4,012.97 is: 6,019.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,872.69 : 20,809.64 = 4,012.97 : x
  2. Step 2: Convert to fraction form
    13,872.69/20,809.64 = 4,012.97/x
  3. Step 3: Cross multiply
    13,872.69x = 20,809.64 × 4,012.97
  4. Step 4: Simplify right side
    13,872.69x = 83,508,336.92
  5. Step 5: Solve for x
    x = 83,508,336.92/13,872.69
  6. Step 6: Final answer
    x = 6,019.62

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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.