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Finding the Fourth Proportional to 12,571.99, 17,347.41 and 7,265.78

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Solution

The fourth proportional to 12,571.99, 17,347.41 and 7,265.78 is: 10,025.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,571.99 : 17,347.41 = 7,265.78 : x
  2. Step 2: Convert to fraction form
    12,571.99/17,347.41 = 7,265.78/x
  3. Step 3: Cross multiply
    12,571.99x = 17,347.41 × 7,265.78
  4. Step 4: Simplify right side
    12,571.99x = 126,042,464.63
  5. Step 5: Solve for x
    x = 126,042,464.63/12,571.99
  6. Step 6: Final answer
    x = 10,025.66

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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.