Home / 11,268.87-15,551.61-6,489.54

Finding the Fourth Proportional to 11,268.87, 15,551.61 and 6,489.54

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Solution

The fourth proportional to 11,268.87, 15,551.61 and 6,489.54 is: 8,955.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,268.87 : 15,551.61 = 6,489.54 : x
  2. Step 2: Convert to fraction form
    11,268.87/15,551.61 = 6,489.54/x
  3. Step 3: Cross multiply
    11,268.87x = 15,551.61 × 6,489.54
  4. Step 4: Simplify right side
    11,268.87x = 100,922,795.16
  5. Step 5: Solve for x
    x = 100,922,795.16/11,268.87
  6. Step 6: Final answer
    x = 8,955.89

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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.