Home / 11,721.66-16,175.91-6,416.49

Finding the Fourth Proportional to 11,721.66, 16,175.91 and 6,416.49

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Solution

The fourth proportional to 11,721.66, 16,175.91 and 6,416.49 is: 8,854.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.66 : 16,175.91 = 6,416.49 : x
  2. Step 2: Convert to fraction form
    11,721.66/16,175.91 = 6,416.49/x
  3. Step 3: Cross multiply
    11,721.66x = 16,175.91 × 6,416.49
  4. Step 4: Simplify right side
    11,721.66x = 103,792,564.76
  5. Step 5: Solve for x
    x = 103,792,564.76/11,721.66
  6. Step 6: Final answer
    x = 8,854.77

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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.