Home / 12,680.25-19,020.42-4,362.66

Finding the Fourth Proportional to 12,680.25, 19,020.42 and 4,362.66

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Solution

The fourth proportional to 12,680.25, 19,020.42 and 4,362.66 is: 6,544.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,680.25 : 19,020.42 = 4,362.66 : x
  2. Step 2: Convert to fraction form
    12,680.25/19,020.42 = 4,362.66/x
  3. Step 3: Cross multiply
    12,680.25x = 19,020.42 × 4,362.66
  4. Step 4: Simplify right side
    12,680.25x = 82,979,625.52
  5. Step 5: Solve for x
    x = 82,979,625.52/12,680.25
  6. Step 6: Final answer
    x = 6,544.01

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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.