Home / 11,078.49-16,618.45-7,736.64

Finding the Fourth Proportional to 11,078.49, 16,618.45 and 7,736.64

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Solution

The fourth proportional to 11,078.49, 16,618.45 and 7,736.64 is: 11,605.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,078.49 : 16,618.45 = 7,736.64 : x
  2. Step 2: Convert to fraction form
    11,078.49/16,618.45 = 7,736.64/x
  3. Step 3: Cross multiply
    11,078.49x = 16,618.45 × 7,736.64
  4. Step 4: Simplify right side
    11,078.49x = 128,570,965.01
  5. Step 5: Solve for x
    x = 128,570,965.01/11,078.49
  6. Step 6: Final answer
    x = 11,605.46

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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.