Home / 7,965.42-11,953.53-2,771.28

Finding the Fourth Proportional to 7,965.42, 11,953.53 and 2,771.28

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Solution

The fourth proportional to 7,965.42, 11,953.53 and 2,771.28 is: 4,158.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,965.42 : 11,953.53 = 2,771.28 : x
  2. Step 2: Convert to fraction form
    7,965.42/11,953.53 = 2,771.28/x
  3. Step 3: Cross multiply
    7,965.42x = 11,953.53 × 2,771.28
  4. Step 4: Simplify right side
    7,965.42x = 33,126,578.62
  5. Step 5: Solve for x
    x = 33,126,578.62/7,965.42
  6. Step 6: Final answer
    x = 4,158.80

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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.