Home / 11,721.22-16,175.73-6,686.26

Finding the Fourth Proportional to 11,721.22, 16,175.73 and 6,686.26

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Solution

The fourth proportional to 11,721.22, 16,175.73 and 6,686.26 is: 9,227.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.22 : 16,175.73 = 6,686.26 : x
  2. Step 2: Convert to fraction form
    11,721.22/16,175.73 = 6,686.26/x
  3. Step 3: Cross multiply
    11,721.22x = 16,175.73 × 6,686.26
  4. Step 4: Simplify right side
    11,721.22x = 108,155,136.47
  5. Step 5: Solve for x
    x = 108,155,136.47/11,721.22
  6. Step 6: Final answer
    x = 9,227.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.