Home / 12,684.74-19,026.66-3,919.67

Finding the Fourth Proportional to 12,684.74, 19,026.66 and 3,919.67

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Solution

The fourth proportional to 12,684.74, 19,026.66 and 3,919.67 is: 5,879.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,684.74 : 19,026.66 = 3,919.67 : x
  2. Step 2: Convert to fraction form
    12,684.74/19,026.66 = 3,919.67/x
  3. Step 3: Cross multiply
    12,684.74x = 19,026.66 × 3,919.67
  4. Step 4: Simplify right side
    12,684.74x = 74,578,228.40
  5. Step 5: Solve for x
    x = 74,578,228.40/12,684.74
  6. Step 6: Final answer
    x = 5,879.37

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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.