Home / 11,845.82-17,730.16-8,724.60

Finding the Fourth Proportional to 11,845.82, 17,730.16 and 8,724.60

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Solution

The fourth proportional to 11,845.82, 17,730.16 and 8,724.60 is: 13,058.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,845.82 : 17,730.16 = 8,724.60 : x
  2. Step 2: Convert to fraction form
    11,845.82/17,730.16 = 8,724.60/x
  3. Step 3: Cross multiply
    11,845.82x = 17,730.16 × 8,724.60
  4. Step 4: Simplify right side
    11,845.82x = 154,688,532.12
  5. Step 5: Solve for x
    x = 154,688,532.12/11,845.82
  6. Step 6: Final answer
    x = 13,058.49

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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.