Home / 11,721.49-16,175.66-6,416.33

Finding the Fourth Proportional to 11,721.49, 16,175.66 and 6,416.33

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Solution

The fourth proportional to 11,721.49, 16,175.66 and 6,416.33 is: 8,854.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.49 : 16,175.66 = 6,416.33 : x
  2. Step 2: Convert to fraction form
    11,721.49/16,175.66 = 6,416.33/x
  3. Step 3: Cross multiply
    11,721.49x = 16,175.66 × 6,416.33
  4. Step 4: Simplify right side
    11,721.49x = 103,788,372.53
  5. Step 5: Solve for x
    x = 103,788,372.53/11,721.49
  6. Step 6: Final answer
    x = 8,854.54

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Similar ratio
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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.