Home / 11,387.76-17,089.35-3,992.28

Finding the Fourth Proportional to 11,387.76, 17,089.35 and 3,992.28

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Solution

The fourth proportional to 11,387.76, 17,089.35 and 3,992.28 is: 5,991.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,387.76 : 17,089.35 = 3,992.28 : x
  2. Step 2: Convert to fraction form
    11,387.76/17,089.35 = 3,992.28/x
  3. Step 3: Cross multiply
    11,387.76x = 17,089.35 × 3,992.28
  4. Step 4: Simplify right side
    11,387.76x = 68,225,470.22
  5. Step 5: Solve for x
    x = 68,225,470.22/11,387.76
  6. Step 6: Final answer
    x = 5,991.12

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1.5x scale

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.