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Finding the Fourth Proportional to 8,550.43, 12,802.62 and 5,581.51

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Solution

The fourth proportional to 8,550.43, 12,802.62 and 5,581.51 is: 8,357.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,550.43 : 12,802.62 = 5,581.51 : x
  2. Step 2: Convert to fraction form
    8,550.43/12,802.62 = 5,581.51/x
  3. Step 3: Cross multiply
    8,550.43x = 12,802.62 × 5,581.51
  4. Step 4: Simplify right side
    8,550.43x = 71,457,940.48
  5. Step 5: Solve for x
    x = 71,457,940.48/8,550.43
  6. Step 6: Final answer
    x = 8,357.24

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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.