Home / 13,128.62-19,696.01-8,068.44

Finding the Fourth Proportional to 13,128.62, 19,696.01 and 8,068.44

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Solution

The fourth proportional to 13,128.62, 19,696.01 and 8,068.44 is: 12,104.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,128.62 : 19,696.01 = 8,068.44 : x
  2. Step 2: Convert to fraction form
    13,128.62/19,696.01 = 8,068.44/x
  3. Step 3: Cross multiply
    13,128.62x = 19,696.01 × 8,068.44
  4. Step 4: Simplify right side
    13,128.62x = 158,916,108.44
  5. Step 5: Solve for x
    x = 158,916,108.44/13,128.62
  6. Step 6: Final answer
    x = 12,104.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.