Home / 11,682.72-16,120.08-6,646.14

Finding the Fourth Proportional to 11,682.72, 16,120.08 and 6,646.14

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Solution

The fourth proportional to 11,682.72, 16,120.08 and 6,646.14 is: 9,170.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,682.72 : 16,120.08 = 6,646.14 : x
  2. Step 2: Convert to fraction form
    11,682.72/16,120.08 = 6,646.14/x
  3. Step 3: Cross multiply
    11,682.72x = 16,120.08 × 6,646.14
  4. Step 4: Simplify right side
    11,682.72x = 107,136,308.49
  5. Step 5: Solve for x
    x = 107,136,308.49/11,682.72
  6. Step 6: Final answer
    x = 9,170.49

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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.