Home / 18,664.66-28,004.69-7,568.56

Finding the Fourth Proportional to 18,664.66, 28,004.69 and 7,568.56

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Solution

The fourth proportional to 18,664.66, 28,004.69 and 7,568.56 is: 11,355.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,664.66 : 28,004.69 = 7,568.56 : x
  2. Step 2: Convert to fraction form
    18,664.66/28,004.69 = 7,568.56/x
  3. Step 3: Cross multiply
    18,664.66x = 28,004.69 × 7,568.56
  4. Step 4: Simplify right side
    18,664.66x = 211,955,176.55
  5. Step 5: Solve for x
    x = 211,955,176.55/18,664.66
  6. Step 6: Final answer
    x = 11,355.96

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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.