Home / 12,971.22-19,456.83-4,207.02

Finding the Fourth Proportional to 12,971.22, 19,456.83 and 4,207.02

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Solution

The fourth proportional to 12,971.22, 19,456.83 and 4,207.02 is: 6,310.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.22 : 19,456.83 = 4,207.02 : x
  2. Step 2: Convert to fraction form
    12,971.22/19,456.83 = 4,207.02/x
  3. Step 3: Cross multiply
    12,971.22x = 19,456.83 × 4,207.02
  4. Step 4: Simplify right side
    12,971.22x = 81,855,272.95
  5. Step 5: Solve for x
    x = 81,855,272.95/12,971.22
  6. Step 6: Final answer
    x = 6,310.53

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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.