Home / 11,968.48-17,867.20-11,177.92

Finding the Fourth Proportional to 11,968.48, 17,867.20 and 11,177.92

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Solution

The fourth proportional to 11,968.48, 17,867.20 and 11,177.92 is: 16,687.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,968.48 : 17,867.20 = 11,177.92 : x
  2. Step 2: Convert to fraction form
    11,968.48/17,867.20 = 11,177.92/x
  3. Step 3: Cross multiply
    11,968.48x = 17,867.20 × 11,177.92
  4. Step 4: Simplify right side
    11,968.48x = 199,718,132.22
  5. Step 5: Solve for x
    x = 199,718,132.22/11,968.48
  6. Step 6: Final answer
    x = 16,687.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.