Home / 12,481.05-17,219.67-8,007.23

Finding the Fourth Proportional to 12,481.05, 17,219.67 and 8,007.23

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Solution

The fourth proportional to 12,481.05, 17,219.67 and 8,007.23 is: 11,047.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.05 : 17,219.67 = 8,007.23 : x
  2. Step 2: Convert to fraction form
    12,481.05/17,219.67 = 8,007.23/x
  3. Step 3: Cross multiply
    12,481.05x = 17,219.67 × 8,007.23
  4. Step 4: Simplify right side
    12,481.05x = 137,881,772.12
  5. Step 5: Solve for x
    x = 137,881,772.12/12,481.05
  6. Step 6: Final answer
    x = 11,047.29

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Double scale
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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.