Home / 12,776.28-17,630.82-7,110.84

Finding the Fourth Proportional to 12,776.28, 17,630.82 and 7,110.84

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Solution

The fourth proportional to 12,776.28, 17,630.82 and 7,110.84 is: 9,812.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,776.28 : 17,630.82 = 7,110.84 : x
  2. Step 2: Convert to fraction form
    12,776.28/17,630.82 = 7,110.84/x
  3. Step 3: Cross multiply
    12,776.28x = 17,630.82 × 7,110.84
  4. Step 4: Simplify right side
    12,776.28x = 125,369,940.09
  5. Step 5: Solve for x
    x = 125,369,940.09/12,776.28
  6. Step 6: Final answer
    x = 9,812.71

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1.5x scale

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.