Home / 12,980.22-19,470.33-4,216.02

Finding the Fourth Proportional to 12,980.22, 19,470.33 and 4,216.02

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Solution

The fourth proportional to 12,980.22, 19,470.33 and 4,216.02 is: 6,324.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,980.22 : 19,470.33 = 4,216.02 : x
  2. Step 2: Convert to fraction form
    12,980.22/19,470.33 = 4,216.02/x
  3. Step 3: Cross multiply
    12,980.22x = 19,470.33 × 4,216.02
  4. Step 4: Simplify right side
    12,980.22x = 82,087,300.69
  5. Step 5: Solve for x
    x = 82,087,300.69/12,980.22
  6. Step 6: Final answer
    x = 6,324.03

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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.