Home / 12,505.03-17,262.26-7,791.64

Finding the Fourth Proportional to 12,505.03, 17,262.26 and 7,791.64

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Solution

The fourth proportional to 12,505.03, 17,262.26 and 7,791.64 is: 10,755.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,505.03 : 17,262.26 = 7,791.64 : x
  2. Step 2: Convert to fraction form
    12,505.03/17,262.26 = 7,791.64/x
  3. Step 3: Cross multiply
    12,505.03x = 17,262.26 × 7,791.64
  4. Step 4: Simplify right side
    12,505.03x = 134,501,276.55
  5. Step 5: Solve for x
    x = 134,501,276.55/12,505.03
  6. Step 6: Final answer
    x = 10,755.77

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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.