Home / 13,171.26-19,746.06-6,147.80

Finding the Fourth Proportional to 13,171.26, 19,746.06 and 6,147.80

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Solution

The fourth proportional to 13,171.26, 19,746.06 and 6,147.80 is: 9,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,171.26 : 19,746.06 = 6,147.80 : x
  2. Step 2: Convert to fraction form
    13,171.26/19,746.06 = 6,147.80/x
  3. Step 3: Cross multiply
    13,171.26x = 19,746.06 × 6,147.80
  4. Step 4: Simplify right side
    13,171.26x = 121,394,814.51
  5. Step 5: Solve for x
    x = 121,394,814.51/13,171.26
  6. Step 6: Final answer
    x = 9,216.65

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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.