Home / 7,618.81-11,429.96-3,177.25

Finding the Fourth Proportional to 7,618.81, 11,429.96 and 3,177.25

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Solution

The fourth proportional to 7,618.81, 11,429.96 and 3,177.25 is: 4,766.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,618.81 : 11,429.96 = 3,177.25 : x
  2. Step 2: Convert to fraction form
    7,618.81/11,429.96 = 3,177.25/x
  3. Step 3: Cross multiply
    7,618.81x = 11,429.96 × 3,177.25
  4. Step 4: Simplify right side
    7,618.81x = 36,315,845.97
  5. Step 5: Solve for x
    x = 36,315,845.97/7,618.81
  6. Step 6: Final answer
    x = 4,766.60

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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.