Home / 12,971.25-19,470.74-5,579.37

Finding the Fourth Proportional to 12,971.25, 19,470.74 and 5,579.37

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Solution

The fourth proportional to 12,971.25, 19,470.74 and 5,579.37 is: 8,375.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,971.25 : 19,470.74 = 5,579.37 : x
  2. Step 2: Convert to fraction form
    12,971.25/19,470.74 = 5,579.37/x
  3. Step 3: Cross multiply
    12,971.25x = 19,470.74 × 5,579.37
  4. Step 4: Simplify right side
    12,971.25x = 108,634,434.74
  5. Step 5: Solve for x
    x = 108,634,434.74/12,971.25
  6. Step 6: Final answer
    x = 8,375.02

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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.