Home / 12,709.16-19,063.64-3,824.45

Finding the Fourth Proportional to 12,709.16, 19,063.64 and 3,824.45

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Solution

The fourth proportional to 12,709.16, 19,063.64 and 3,824.45 is: 5,736.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,709.16 : 19,063.64 = 3,824.45 : x
  2. Step 2: Convert to fraction form
    12,709.16/19,063.64 = 3,824.45/x
  3. Step 3: Cross multiply
    12,709.16x = 19,063.64 × 3,824.45
  4. Step 4: Simplify right side
    12,709.16x = 72,907,823.56
  5. Step 5: Solve for x
    x = 72,907,823.56/12,709.16
  6. Step 6: Final answer
    x = 5,736.64

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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.