Home / 11,721.44-16,175.54-6,416.22

Finding the Fourth Proportional to 11,721.44, 16,175.54 and 6,416.22

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Solution

The fourth proportional to 11,721.44, 16,175.54 and 6,416.22 is: 8,854.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.44 : 16,175.54 = 6,416.22 : x
  2. Step 2: Convert to fraction form
    11,721.44/16,175.54 = 6,416.22/x
  3. Step 3: Cross multiply
    11,721.44x = 16,175.54 × 6,416.22
  4. Step 4: Simplify right side
    11,721.44x = 103,785,823.26
  5. Step 5: Solve for x
    x = 103,785,823.26/11,721.44
  6. Step 6: Final answer
    x = 8,854.36

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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.