Home / 11,971.22-16,521.18-6,936.80

Finding the Fourth Proportional to 11,971.22, 16,521.18 and 6,936.80

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Solution

The fourth proportional to 11,971.22, 16,521.18 and 6,936.80 is: 9,573.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,971.22 : 16,521.18 = 6,936.80 : x
  2. Step 2: Convert to fraction form
    11,971.22/16,521.18 = 6,936.80/x
  3. Step 3: Cross multiply
    11,971.22x = 16,521.18 × 6,936.80
  4. Step 4: Simplify right side
    11,971.22x = 114,604,121.42
  5. Step 5: Solve for x
    x = 114,604,121.42/11,971.22
  6. Step 6: Final answer
    x = 9,573.30

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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.