Home / 10,668.78-16,004.14-2,771.28

Finding the Fourth Proportional to 10,668.78, 16,004.14 and 2,771.28

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Solution

The fourth proportional to 10,668.78, 16,004.14 and 2,771.28 is: 4,157.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,668.78 : 16,004.14 = 2,771.28 : x
  2. Step 2: Convert to fraction form
    10,668.78/16,004.14 = 2,771.28/x
  3. Step 3: Cross multiply
    10,668.78x = 16,004.14 × 2,771.28
  4. Step 4: Simplify right side
    10,668.78x = 44,351,953.10
  5. Step 5: Solve for x
    x = 44,351,953.10/10,668.78
  6. Step 6: Final answer
    x = 4,157.17

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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.