Home / 12,929.09-19,396.43-4,164.69

Finding the Fourth Proportional to 12,929.09, 19,396.43 and 4,164.69

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Solution

The fourth proportional to 12,929.09, 19,396.43 and 4,164.69 is: 6,247.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.09 : 19,396.43 = 4,164.69 : x
  2. Step 2: Convert to fraction form
    12,929.09/19,396.43 = 4,164.69/x
  3. Step 3: Cross multiply
    12,929.09x = 19,396.43 × 4,164.69
  4. Step 4: Simplify right side
    12,929.09x = 80,780,118.06
  5. Step 5: Solve for x
    x = 80,780,118.06/12,929.09
  6. Step 6: Final answer
    x = 6,247.94

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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.