Home / 11,682.93-16,121.03-6,647.79

Finding the Fourth Proportional to 11,682.93, 16,121.03 and 6,647.79

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Solution

The fourth proportional to 11,682.93, 16,121.03 and 6,647.79 is: 9,173.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.93 : 16,121.03 = 6,647.79 : x
  2. Step 2: Convert to fraction form
    11,682.93/16,121.03 = 6,647.79/x
  3. Step 3: Cross multiply
    11,682.93x = 16,121.03 × 6,647.79
  4. Step 4: Simplify right side
    11,682.93x = 107,169,188.78
  5. Step 5: Solve for x
    x = 107,169,188.78/11,682.93
  6. Step 6: Final answer
    x = 9,173.14

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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.