Home / 12,481.20-17,224.61-7,177.77

Finding the Fourth Proportional to 12,481.20, 17,224.61 and 7,177.77

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Solution

The fourth proportional to 12,481.20, 17,224.61 and 7,177.77 is: 9,905.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,481.20 : 17,224.61 = 7,177.77 : x
  2. Step 2: Convert to fraction form
    12,481.20/17,224.61 = 7,177.77/x
  3. Step 3: Cross multiply
    12,481.20x = 17,224.61 × 7,177.77
  4. Step 4: Simplify right side
    12,481.20x = 123,634,253.03
  5. Step 5: Solve for x
    x = 123,634,253.03/12,481.20
  6. Step 6: Final answer
    x = 9,905.64

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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.