Home / 11,968.88-16,516.96-6,663.72

Finding the Fourth Proportional to 11,968.88, 16,516.96 and 6,663.72

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Solution

The fourth proportional to 11,968.88, 16,516.96 and 6,663.72 is: 9,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,968.88 : 16,516.96 = 6,663.72 : x
  2. Step 2: Convert to fraction form
    11,968.88/16,516.96 = 6,663.72/x
  3. Step 3: Cross multiply
    11,968.88x = 16,516.96 × 6,663.72
  4. Step 4: Simplify right side
    11,968.88x = 110,064,396.69
  5. Step 5: Solve for x
    x = 110,064,396.69/11,968.88
  6. Step 6: Final answer
    x = 9,195.88

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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.