Home / 11,782.26-17,674.20-3,990.06

Finding the Fourth Proportional to 11,782.26, 17,674.20 and 3,990.06

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Solution

The fourth proportional to 11,782.26, 17,674.20 and 3,990.06 is: 5,985.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,782.26 : 17,674.20 = 3,990.06 : x
  2. Step 2: Convert to fraction form
    11,782.26/17,674.20 = 3,990.06/x
  3. Step 3: Cross multiply
    11,782.26x = 17,674.20 × 3,990.06
  4. Step 4: Simplify right side
    11,782.26x = 70,521,118.45
  5. Step 5: Solve for x
    x = 70,521,118.45/11,782.26
  6. Step 6: Final answer
    x = 5,985.36

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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.