Home / 7,992.18-11,988.36-2,148.84

Finding the Fourth Proportional to 7,992.18, 11,988.36 and 2,148.84

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Solution

The fourth proportional to 7,992.18, 11,988.36 and 2,148.84 is: 3,223.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,992.18 : 11,988.36 = 2,148.84 : x
  2. Step 2: Convert to fraction form
    7,992.18/11,988.36 = 2,148.84/x
  3. Step 3: Cross multiply
    7,992.18x = 11,988.36 × 2,148.84
  4. Step 4: Simplify right side
    7,992.18x = 25,761,067.50
  5. Step 5: Solve for x
    x = 25,761,067.50/7,992.18
  6. Step 6: Final answer
    x = 3,223.28

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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.