Home / 11,721.54-16,175.68-6,343.96

Finding the Fourth Proportional to 11,721.54, 16,175.68 and 6,343.96

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Solution

The fourth proportional to 11,721.54, 16,175.68 and 6,343.96 is: 8,754.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,721.54 : 16,175.68 = 6,343.96 : x
  2. Step 2: Convert to fraction form
    11,721.54/16,175.68 = 6,343.96/x
  3. Step 3: Cross multiply
    11,721.54x = 16,175.68 × 6,343.96
  4. Step 4: Simplify right side
    11,721.54x = 102,617,866.89
  5. Step 5: Solve for x
    x = 102,617,866.89/11,721.54
  6. Step 6: Final answer
    x = 8,754.64

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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.